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Preprint ARTICLE | doi:10.20944/preprints202208.0289.v1

Photocatalytically Active Supramolecular Organic-inorganic Magnetic Composites as Efficient Route to Remove β-lactam Antibiotics from Water

Sabina Gabriela Ion, Octavian D. Pavel, Nicolae Guzo, Madalina Tudorache, Simona M. Coman, Vasile I. Parvulescu, Bogdan Cojocaru, Elisabeth E. Jacobsen

Subject: Chemistry, Applied Chemistry Keywords: layered double hydroxides; magnetic nanoparticles; phthalocyanines; antibiotics removal

Online: 16 August 2022 (11:12:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202208.0126.v1

Encapsulation Studies and In Silico Identification of Protein Targets Associated to the Insecticide Activity of Eugenol Derivatives

Maria José G. Fernandes, Renato B. Pereira, Ana Rita O. Rodrigues, Tatiana F. Vieira, A. Gil Fortes, David M. Pereira, Sérgio F. Sousa, Elisabete M. S. Castanheira, M. Sameiro Gonçalves

Subject: Chemistry, Applied Chemistry Keywords: Eugenol; Essential oils; Nanoencapsulation; Biopesticides; Insecticides; Odorant binding proteins; Inverted virtual screening

Online: 5 August 2022 (14:43:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202207.0346.v1

Hydrophilic Antimicrobial Coatings for Medical Leathers from Silica-Dendritic Polymer-Silver Nanoparticle Composite Xerogels

Michael Arkas, Georgia Kythreoti, Evangelos P. Favvas, Konstantinos Giannakopoulos, Nafsica Mouti, Marina Arvanitopoulou, Ariadne Athanasiou, Marilina Douloudi, Eleni Nikoli, Michail Vardavoulias, Marios Dimitriou, Ioannis Karakasiliotis, Victoria Ballén, Sara M. Soto

Subject: Chemistry, Applied Chemistry Keywords: dendrimers; hyperbranched; poly (ethylene imine); xerogels; antibacterial; SARS COVID-19 virus; antibiofilm; antiviral; water permeability; surface hydrophilicity

Online: 25 July 2022 (04:38:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202107.0327.v2

Modeling the Dual-Function Effects of Free Radical and Cationic Hybrid-Photopolymerization in Iodonium/Amine System

Jui-Teng Lin, Kuo-Ti Chen

Subject: Chemistry, Applied Chemistry Keywords: polymerization kinetics; photoinitiator; monomer conversion profile; synergistic effects

Online: 2 June 2022 (04:19:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202202.0129.v2

Performance of Marine Sponge Symbiont Bacteria and Bacterial Isolates from Seawater in Pyrene Biodegradation

Ismail Marzuki, Khairun Nisaa, Ruzkiah Asaf, Mudian Paena, Admi Athirah, Endang Susianingsih, Nurhi-dayah Nurhidayah, Ince Ayu Khairana Kadriah, Kamaruddin Kamaruddin, Sahabuddin Sahabuddin, Nurbaya Nurbaya, Early Septiningsih, Herlinah Herlinah, Erfan Andi Hendrajat, Suwardi Suwardi, Andi Ramlan

Subject: Chemistry, Applied Chemistry Keywords: biodegradation; pyrene; pollutants; bacteria; marine sponges; polluted seawater

Online: 22 April 2022 (03:32:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202202.0195.v1

Citric Acid-Assisted Preparation of Biochar Loaded with Copper/Nickel Bimetallic Nanoparticles

Jessim Omiri, Youssef Snoussi, Arvind Bhakta, Stéphanie Truong, Souad Ammar, Ahmed M. Khalil, Mohamed Jouini, Mohamed C. Chehimi

Subject: Chemistry, Applied Chemistry Keywords: olea europaea; olive stone; agro-waste; slow pyrolysis; bimetallic nano-alloys; catalyzed dye degradation; Trash-to-Treasure

Online: 16 February 2022 (06:41:46 CET)

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Biochar is a carbon allotrope obtained by pyrolysis of biomass, usually agro-waste. Owing to the demand for sustainable development, biochar is continuously raising much hope in the scientific community. However, in order to impart it with new properties, its modification is required, either in situ during pyrolysis, or after the carbonization process. Herein, we propose a new direct approach to obtain bimetallic copper/nickel nanoparticle-loaded on olive stone biochar. The bimetallic-coated biochar and the reference materials bare biochar, copper-loaded and nickel-loaded biochar were prepared at 400 °C under a stream of dinitrogen from olive pit powder particles impregnated first with citric acid (CA), and then with copper and nickel nitrates. We have employed citric acid in the process in order to check its effect on the structural and textural properties of biochar supporting the metallic nanoparticles. Surprisingly, citric acid induced the formation of agglomerated or even raspberry-shaped, bimetallic copper/nickel nanoparticles. Large 450-500 nm-sized agglomerates of ~80 nm bimetallic CuNi NPs were noted for B-CA@CuNi. Interestingly, for biochar material prepared with initial Cu/Ni=10 molar ratio (B-CA@CuNi10/1), the bimetallic NPs formed unusual nano-raspberries (1748 nm in size) which are agglomerates of individual 10-20 nm-sized CuNi10/1 nanoparticles. The B-CA@CuNi and reference materials were characterized by Raman spectroscopy, scanning electron microscopy (SEM)/energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD) and magnetometry. The B-CA@CuNi and B-CA@Ni materials could be attracted efficiently with a magnet, but not B-CA@CuNi10/1 due to a low nickel loading. B-CA@CuNi was tested as a catalyst for the degradation of methyl orange (MO). Discoloration was noted within 10 min, much faster than a similar material prepared in the absence of CA. B-CA@CuNi could be recycled at least 3 times with exhibit as fast discoloration catalysis performance. This paper stresses the important role of citric acid in shaping the bimetallic nanoparticles loaded in situ on biochar during the slow pyrolysis process and to enable faster catalysed discoloration of organic dye solution.

Preprint ARTICLE | doi:10.20944/preprints202202.0129.v1

Comparison of the Strength of Biodegradation of Pyrene between Symbiont Bacteria of Marine Sponges and Bacteria Isolated from Seawater

Ismail Marzuki, Khairun Nisaa, Ruzkiah Asaf, Mudian Paena, Admi Athirah, Endang Susianingsih, Nurhidayah Nurhidayah, Ince Ayu Khairana Kadriah, Kamaruddin Kamaruddin, Sahabuddin Sahabuddin, Nurbaya Nurbaya, Early Septiningsih, Herlinah Herlinah, Erfan Andi Hendrajat, Suwardi Suwardi, Andi Ramlan

Subject: Chemistry, Applied Chemistry Keywords: biodegradation; pyrene; pollutants; bacteria; marine sponges; polluted seawater

Online: 9 February 2022 (10:04:39 CET)

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Preprint ARTICLE | doi:10.20944/preprints202201.0446.v2

Modeling the Enhanced-Efficacy and Curing-Depth of Photo-Thermal Dual Polymerization in Metal (Fe) Polymer Composites for 3D Printing

Jui-Teng Lin, Yi-Ze Lee, Jacques Lalevee

Subject: Chemistry, Applied Chemistry Keywords: photo-polymerization kinetics; monomer conversion; metal composited; enhancement effects; curing depth; 3D printing; addative manufacturing

Online: 7 February 2022 (12:52:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints202201.0446.v1

Modeling the Enhanced-Efficacy and Curing-Depth of Photo-Thermal Dual Polymerization in Metal (Fe) Polymer Composites for 3D Printing

Jui-Teng Lin, Yi-Ze Lee, Jacques Lalevee, Chia-Huang Kao, Kuan-Han Lin, Da-Chuan Cheng

Subject: Chemistry, Applied Chemistry Keywords: photo-polymerization kinetics; monomer conversion; metal composited; enhancement effects; curing depth; 3D printing; addative manufacturing

Online: 31 January 2022 (11:03:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints202201.0355.v1

Photocatalytic Reduction of Nitrates and Combined Photodegradation with Ammonium

Francesco Conte, Veronica Pellegatta, Gianguido Ramis, Ilenia Rossetti

Subject: Chemistry, Applied Chemistry Keywords: Wastewater treatment; Nitrogen-containing pollutants; Nitrate photoreduction; SCR; Photocatalysis; Titania.

Online: 24 January 2022 (12:46:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints202201.0207.v1

Structural and Optical Characterizations of Cadmium Chalcogenide Layers on Polyamide Formed Using Monotelluropentathionic Acid

Remigijus Ivanauskas, Linas Samardokas, Judita Sukyte, Skirma Zalenkiene, Ingrida Ancutiene

Subject: Chemistry, Applied Chemistry Keywords: monotelluropentathionic acid; surface properties; functional materials; thin layers

Online: 14 January 2022 (11:30:41 CET)

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Preprint ARTICLE | doi:10.20944/preprints202201.0013.v1

Transformation of Triglycerides to Fatty Acid Methyl Esters with Hydrophilic Sulfonated Silica (SiO₂-SO₃H) as Catalyst and Quaternary Ammonium Salts in Toluene or DMSO

Sandro Luiz Barbosa Santos, Adeline C. Pereira Rocha, David Lee Nelson, Milton Souza Freitas, Antônio A. P. Fulgêncio Mestre, stanlei Ivair Klein, Giuliano Cesar Clososki, Franco Jazon Caires, Danilo L. Flumignan, Letícia Karen dos Santos, Alexandre Pereira Wentz, Vânya M. Duarte Pasa, Regiane D. Fernandes Rios

Subject: Chemistry, Applied Chemistry Keywords: hydrophilic sulfonated silica catalyst; Aliquat 336; tetrabutylammonium tetrafluoroborate; transesterification; fatty acid methyl esters, DMSO.

Online: 4 January 2022 (15:24:55 CET)

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Preprint REVIEW | doi:10.20944/preprints202112.0451.v1

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

Michael Arkas, Ioannis Anastopoulos, Dimitrios Giannakoudakis, Ioannis Pashalidis, Theodora Katsika, Eleni Nikoli, Rafael Panagiotopoulos, Anna Fotopoulou, Michail Vardavoulias, Marilina Douloudi

Subject: Chemistry, Applied Chemistry Keywords: Dendritic Polymers; Dendrimers; Metal Nanoparticles; Photocatalysis; Water Purification; dye discoloration; pollutant degradation; nanoparticle catalysis; decomposition; semicoductors

Online: 28 December 2021 (14:19:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints202112.0101.v1

Mixed Solvents in Multi-Layer Ceramic Capacitors (MLCC) Elec-Tronic Paste and Their Effects on the Properties of Organic Vehicle

Ruolong Gan, Junrong Li, Xiuhua Cao, Jun Huang, Liying Qian

Subject: Chemistry, Applied Chemistry Keywords: electronic paste; organic vehicle; mixed-solvents; solubility parameter; low residual rate

Online: 7 December 2021 (11:46:21 CET)

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Preprint REVIEW | doi:10.20944/preprints202112.0092.v1

Computer Simulations of Deep Eutectic Solvents. Challenges, Solutions, and Perspectives

Dmitry Tolmachev, Natalia Lukasheva, Ruslan Ramazanov, Victor Nazarychev, Natalia Borzdun, Igor Volgin, Maria Andreeva, Artyom Glova, Sofia Melnikova, Alexey Dobrovskiy, Steven A. Silber, Sergey Larin, Rafael Maglia de Souza, Mauro Carlos Costa Ribeiro, Sergey Lyulin, Mikko Karttunen

Subject: Chemistry, Applied Chemistry Keywords: deep eutectic solvents; computer simulation; quantum mechanics; molecular dynamics; machine leaning.

Online: 6 December 2021 (16:16:32 CET)

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Preprint ARTICLE | doi:10.20944/preprints202112.0064.v1

Lanthanum Oxide Obtention from Different Spent Fluid Catalytic Cracking Catalysts

Lorena Alcaraz, Olga Rodríguez Largo, Francisco J. Alguacil, Margarita Alvarez Montes, Carmen Baudín, Félix A. López

Subject: Chemistry, Applied Chemistry Keywords: spent fluid catalytic cracking catalyst; waste slag; leaching; lanthanum oxide; rare earths recovery

Online: 6 December 2021 (12:04:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints202111.0451.v1

Economic and Technical Feasibility of AnchoisFert Organic Fertilizer Production

Rosaria Ciriminna, Antonino Scurria, Daniela Maria Pizzone, Paolo Salvatore Calabrò, Adele Muscolo, Francesco Mauriello, Mario Pagliaro

Subject: Chemistry, Applied Chemistry Keywords: AnchoisFert; Fish waste; Green extraction; Limonene; Organic fertilizer

Online: 24 November 2021 (10:32:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints202111.0242.v1

The Removal of Rare-Earth Metals from Water-Salt Systems – An Innovative Aspect of the Modern Industry

Olga Leonidovna Lobacheva

Subject: Chemistry, Applied Chemistry Keywords: contamination in environmental media; ion flotation; rare-earth elements; removal

Online: 15 November 2021 (09:09:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints202111.0149.v1

Environmentally Friendly Polyvinyl alcohol−alginate/bentonite Nanocomposite Hydrogel Beads as Efficient Adsorbents for Removal of Toxic Methylene Blue from Aqueous Solution

Mona A. Aziz Aljar, Suad Rashdan, Ahmed Abd El-Fattah

Subject: Chemistry, Applied Chemistry Keywords: Alginate; polyvinyl alcohol; bentonite clay; nanocomposites hydrogel; cationic dyes; water remediation.

Online: 8 November 2021 (14:30:34 CET)

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Hazardous chemicals like toxic organic dyes are very harmful to the environment and their removal is quite challenging. Therefore there is a necessity to develop techniques, which are environment friendly, cost-effective and easily available in nature for water purification and re-mediation. The present research work is focused on the development` and characterization of the ecofriendly polyvinyl alcohol (PVA) and alginate (Alg) hydrogel beads incorporating natural bentonite (Bent) clay as beneficial adsorbents for removal of toxic methylene blue (MB) from industrial water. PVA−Alg/Bent nanocomposite hydrogel beads with different Bent content (0, 10, 20, and 30 wt%) were synthesized via external ionic gelation method. The designed porous and steady structure beads were characterized by the use of Fourier transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM). The performance of the beads as MB adsorbents was investigated by treating batch aqueous solutions. The experimental results indicated that the incorporation of Bent (30 w%) in the nanocomposite formulation sustained porous structure, preserved water uptake, and increased MB removal effi-ciency by 230 % compared to empty beads. Designed beads possessed higher aﬃnity to MB at high pH 8, 30 °C, and ﬁtted well to pseudo-second-order kinetic model a high correlation coeﬃcient. Moreover, designed beads had a good stability and reusability as they exhibited excellent removal eﬃciency (90%) after six consecutive adsorption-desorption cycles. Adsorption process was found be combination of both monolayer adsorption on homogeneous surface and multilayer adsorption on heterogeneous surface. The maximum adsorption capacity of the designed beads system as calculated by Langmuir isotherm was found to be 51.34 mg/g, which is in good agreement with the reported clay-related adsorbents. The designed PVA−Alg/Bent nanocomposite hydrogel beads demonstrated good adsorbent properties and could be potentially used for MB removal from polluted water.

Preprint ARTICLE | doi:10.20944/preprints202111.0128.v1

Iridium/Graphene Nanostructured Catalyst for the N-Alkylation of Amines to Synthesize Nitrogen-containing Derivatives and Heterocyclic Compounds

Tsun-Ren Chen, Yu-Tung Chen, Yen-Hsing Lin, Hao-Chen Wang

Subject: Chemistry, Applied Chemistry Keywords: keyword Iridium; Graphene; Nanostructure; Heterogeneous; Heterocyclic

Online: 8 November 2021 (11:52:04 CET)

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Preprint ARTICLE | doi:10.20944/preprints202110.0333.v1

Evaluation of Nb₂O₅ Ceramic Nanofibers Efficacy to Promote CO₂ Photoconversion

Ana Prado, Joao Malafatti, Jessica Oliveira, Caue Ribeiro, Miryam Rincón, Ana Luz, Elaine Paris

Subject: Chemistry, Applied Chemistry Keywords: Nb2O5; CO2 conversion; Photocatalysis; Electrospinning; Nanofibers.

Online: 22 October 2021 (15:38:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202110.0313.v1

Separation Fe(III)-Mn(II) via Supported Liquid Membrane Technology in the Treatment of Spent Alkaline Batteries

Francisco J. Alguacil, Félix A. Lopez

Subject: Chemistry, Applied Chemistry Keywords: membrane transport; Cyanex 923; iron(III); manganese (II); separation.

Online: 21 October 2021 (14:10:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202110.0186.v1

Experimental and Density Functional Theory (DFT): a Dual Approach for the Adsorption of Cd (II) Ion from Aqueous Solution by Starch-Based Activated Carbon

Saad Melhi, Saeed Ullah Jan, Adnan Ali Khan, Khan Badshah, Saeed Ullah, Bushra Bostan, Zeliha Selamoglu

Subject: Chemistry, Applied Chemistry Keywords: Adsorption; DFT; Starch-based Activated Carbon; Kinetics; Thermodynamics

Online: 12 October 2021 (14:58:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202110.0140.v1

Comparison of Biodegradation Performance of Marine Sponge Symbiont Bacteria Consortium Against Anthracene and Pyrene

Ismail Marzuki, Ruzkiah Asaf, Mudian Paena, Admi Athirah, Khairun Nisaa, Rasheed Ahmad, Mudyawati Kamaruddin

Subject: Chemistry, Applied Chemistry Keywords: performance; biodegradation; bacterial consortium; marine sponge; PAHs

Online: 8 October 2021 (12:09:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202109.0331.v1

Batch Adsorption, Kinetics, and DFT study of Cd(II) Ion From Aqueous Solution By Low-Cost Starch-Based Activated Carbon

Saad Melhi Alshahrani, Bushra Bostan, Saeed Ullah Jan, Adnan Ali Khan, Khan Badsha, Saeed Ullah

Subject: Chemistry, Applied Chemistry Keywords: Adsorption; DFT; Cadmium(II) ion; Activated carbon; Kinetics; Thermodynamics

Online: 20 September 2021 (12:22:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202108.0515.v1

Decomposition of Dimethoate and Omethoate in Aqueous Solutions – Half-Life, Neurotoxicity and Mechanism of Hydrolysis

Vladan J. Anićijević, Milena Petković, Igor A Pašti, Tamara Lazarević-Pašti

Subject: Chemistry, Applied Chemistry Keywords: organophosphate; pesticide; pH stability; toxicity; Apis mellifera

Online: 27 August 2021 (10:49:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202101.0333.v2

Synthesis and Deposition of Thermochromic VO2 Thin Films from Peroxide-based Chemical Solutions

Matthias Van Zele, Hannes Rijckaert, Davy Deduytsche, Christophe Detavernier, Isabel Van Driessche, Dirk Poelman, Klaartje De Buysser

Subject: Chemistry, Applied Chemistry Keywords: Wet chemical deposition; crystalline thin films; vanadium dioxide; thermochromism

Online: 17 February 2021 (10:38:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints202101.0333.v1

Synthesis and Deposition of Thermochromic VO2 Thin Films from Peroxide-based Chemical Solutions

Matthias Van Zele, Hannes Rijckaert, Davy Deduytsche, Christophe Detavernier, Isabel Van Driessche, Dirk Poelman, Klaartje De Buysser

Subject: Chemistry, Applied Chemistry Keywords: Wet chemical deposition; crystalline thin films; vanadium dioxide; thermochromism

Online: 18 January 2021 (12:28:03 CET)

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Preprint REVIEW | doi:10.20944/preprints202101.0181.v1

Lignins Isolated via Catalyst-free Organosolv Pulping from Miscanthus x giganteus, M. sinensis, M. robustus and M. nagara: A Comparative Study

Margit Schulze, Michel Bergs, Yulia Monakhova, Bernd Diehl, Christopher Konow, Goerg Völkering, Ralf Pude

Subject: Chemistry, Applied Chemistry Keywords: Miscanthus x giganteus; Miscanthus sinensis; Miscanthus robustus; Miscanthus nagara; lignin; monolignol ratio; low-input crops

Online: 11 January 2021 (10:50:07 CET)

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Preprint ARTICLE | doi:10.20944/preprints202101.0160.v1

CytroCell: Valued Cellulose from Citrus Processing Waste

Antonino Scurria, Lorenzo Albanese, Mario Pagliaro, Federica Zabini, Francesco Giordano, Francesco Meneguzzo, Rosaria Ciriminna

Subject: Chemistry, Applied Chemistry Keywords: cellulose; lemon; grapefruit; citrus processing waste; hydrodynamic cavitation; bioeconomy

Online: 8 January 2021 (13:25:17 CET)

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Preprint ARTICLE | doi:10.20944/preprints202012.0034.v1

Volatile Compounds of Lemon and Grapefruit IntegroPectin

Antonino Scurria, Marzia Sciortino, Alessandro Presentato, Claudia Lino, Elena Piacenza, Lorenzo Albanese, Federica Zabini, Francesco Meneguzzo, Domenico Nuzzo, Mario Pagliaro, Delia Francesca Chillura Martino, Rosa Alduina, Giuseppe Avellone, Rosaria Ciriminna

Subject: Chemistry, Applied Chemistry Keywords: IntegroPectin, lemon, grapefruit, pectin, waste citrus peel, -terpineol, hydrodynamic cavitation, circular economy

Online: 1 December 2020 (15:07:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0504.v1

High-Yield Production of Water-soluble MoS₂ Quantum Dots for Fe³⁺ Detection and Cell Imaging

Benhua Xu, Zhiqi Zhang, Li Wang, Rui Yuan, Zhenghua Ju, Peng Zhang, Weisheng Liu

Subject: Chemistry, Applied Chemistry Keywords: Water-soluble MoS2 quantum dots; , Fluorescent probe; Fe3+ ion sensor; Living cells

Online: 21 September 2020 (14:49:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0232.v1

Technical and Economic Feasibility of a Stable Yellow Natural Colorant Production from Waste Lemon Peel

Rosaria Ciriminna, Billy Forest, Francesco Meneguzzo, Mario Pagliaro, Mark Hamann

Subject: Chemistry, Applied Chemistry Keywords: limocitrol; lemon; citrus; bioeconomy; biocolorant; flavonoids

Online: 10 September 2020 (09:12:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0057.v1

Recovery and Reuse of Chromium Ions from Tannery Wastewater by Precipitation Reaction Method

Mohammed Tabidi

Subject: Chemistry, Applied Chemistry Keywords: Chromium; precipitation; tanning; leather industries; wastewater; sodium hydroxide

Online: 3 September 2020 (04:54:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0020.v1

Sustainable synthesis of omega-3 fatty acid ethyl esters from monkfish liver oil

Johanna Aguilera-Oviedo, Edinson Yara-Varón, Mercè Torres, Ramon Canela-Garayoa, Mercè Balcells

Subject: Chemistry, Applied Chemistry Keywords: Omega-3 ethyl esters; monkfish liver oil; COSMO-RS, fungal resting cells; selectivity.

Online: 2 September 2020 (03:13:05 CEST)

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Preprint REVIEW | doi:10.20944/preprints202008.0234.v1

Green Catalysts: Applied and Synthetic Photosynthesis

Alexandra H. Teodor, Benjamin D. Sherman, Zeah Yvette Ison, Eu-Jee Ooi, Jesse J. Bergkamp, Barry D. Bruce

Subject: Chemistry, Applied Chemistry Keywords: Photosynthesis; Photoelectrochemical Devices; Biohybrid; Synthetic Biology; Photochemistry; Photoelectrochemistry; Hydrogen Evolution

Online: 10 August 2020 (04:20:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0748.v1

Effect of Irrigation System and Soil Conditioners on Growth and Essential Oil of Rosmarinus officinalis L. Cultivated in Egypt

Elsayed Omer, Saber Hendawy, Abdel Nasser ElGendy, Alberto Mannu, Giacomo L. Petretto, Giorgio Pintore

Subject: Chemistry, Applied Chemistry Keywords: Rosmarinus officinalis L.; surface and subsurface drip irrigation; bentonite; Hundz conditioner; essential oil

Online: 31 July 2020 (13:43:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0729.v1

A Scientometric Analysis of Catalysis Research

Rosaria Ciriminna, Irina L. Simakova, Mario Pagliaro, Dmitry Yu. Murzin

Subject: Chemistry, Applied Chemistry Keywords: scientometric analysis; catalysis; bibliometric indicators; catalysis research; catalysis journals

Online: 31 July 2020 (04:36:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0687.v1

Comparative Analysis of Volatile Compounds of Gamma-Irradiated Mutants of Rose (Rosa hybrida)

Jaihyunk Ryu, Dong-Gun Kim, Jung Min Kim, Jae Il Lyu, Yeong Deuk Jo, Si-Yong Kang, Jin-Baek Kim, Sang Hoon Kim

Subject: Chemistry, Applied Chemistry Keywords: Gamma-ray, Mutant, Rose, Volatile compounds, GC-MS

Online: 29 July 2020 (09:46:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0234.v1

Microwave Extraction vs. Other Techniques for Industrial Scale Cannabis Extraction

Marilena Radoiu, Harmandeep Kaur, Anna Bakowska-Barczak, Steven Splinter

Subject: Chemistry, Applied Chemistry Keywords: cannabis; THC; CBD; microwave assisted extraction; continuous flow

Online: 11 July 2020 (09:04:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202005.0511.v1

Mid-infrared Laser Spectroscopy Detection and Quantification of Explosives in Soils Using Multivariate Analysis and Artificial Intelligence

Leonardo C. Pacheco-Londoño, Eric Warren, Nataly J. Galan-Freyle, Reynaldo Villarreal-Gonzalez, Joaquin A. Aparicio-Bolaño, Maria L. Ospina-Castro, Wei-Chuan Shih, Samuel P. Hernandez-Rivera

Subject: Chemistry, Applied Chemistry Keywords: quantum cascade laser; remote detection; partial least squares; high explosives; artificial intelligence; machine learning

Online: 31 May 2020 (20:57:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202005.0496.v1

Exploring the Potential of β-Catenin O-GlcNAcylation by Using Fluorescence-Based Engineering and Imaging

Angelina Kasprowicz, Corentin Spriet, Christine Terryn, Matthew G. Alteen, Tony Lefebvre, Christophe Biot

Subject: Chemistry, Applied Chemistry Keywords: bioorthogonal chemistry; fluorescence; glycosylation; metabolic incorporation; GFP; beta-catenin

Online: 31 May 2020 (19:37:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202005.0302.v1

Oxidized and Non-Oxidized Multiwalled Carbon Nanotubes as Materials for Adsorption of Lanthanum(III) Aqueous Solutions

Francisco J. Alguacil, Irene García-Díaz, Esther Escudero Baquero, Olga Rodríguez Largo, Félix Antonio López

Subject: Chemistry, Applied Chemistry Keywords: lanthanum; multiwalled carbon nanotubes; adsorption; recovery

Online: 18 May 2020 (12:35:28 CEST)

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Working Paper REVIEW

Fighting the SARS CoV-2 (COVID-19) Pandemic with Soap

Narendra Kumar Chaudhary, Nabina Chaudhary, Manis Dahal, Biswash Guragain, Sumie Rai, Rahul Chaudhary, K.M. Sachin, Reena Lamichhane-Khadka, Ajaya Bhattarai

Subject: Chemistry, Applied Chemistry Keywords: COVID-19; SARS-Cov-2; soap; hand washing; WHO

Online: 7 May 2020 (13:48:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202005.0123.v1

Facile Fabrication of Breathable and Superhydrophobic Fabric Based on Silica Nanoparticles and Amino‐Modified Polydimethylsiloxane

Mahdi Hasanzadeh, Hossein Shahriyari Far, Aminoddin Haji, Giuseppe Rosace

Subject: Chemistry, Applied Chemistry Keywords: Sol-gel; Hybrid coating; Superhydrophobic; textile fabric; polydimethylsiloxane; contact angle

Online: 7 May 2020 (12:46:02 CEST)

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Preprint REVIEW | doi:10.20944/preprints202003.0375.v1

Minimizing Defect States in Lead Halide Perovskite Solar Cell Materials

René M. Williams, Rosa Brakkee

Subject: Chemistry, Applied Chemistry Keywords: solar energy; semiconductor; light harvesting; charge generation; photovoltaics; optimization; voltage loss; thin film materials; stabilization, doping

Online: 25 March 2020 (08:50:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints202002.0406.v1

Effect of Precious Metals on NO Reduction by CO in Oxidative Conditions

Joudia Akil, Stephane Siffert, Pirault-Roy Laurence, Damien P. Debecker, François Devred, Renaud Cousin, Christophe Poupin

Subject: Chemistry, Applied Chemistry Keywords: Environmental chemistry; Oxyfuel Combustion; NO-CO reaction; Heterogeneous catalysis.

Online: 27 February 2020 (12:25:57 CET)

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Preprint ARTICLE | doi:10.20944/preprints202002.0263.v1

Permeation of AuCl₄^- across a Liquid Membrane Impregnated with A324H⁺Cl^- Ionic Liquid

Francisco José Alguacil, Félix A. López

Subject: Chemistry, Applied Chemistry Keywords: liquid membrane; ionic liquid; gold

Online: 18 February 2020 (10:43:15 CET)

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Preprint ARTICLE | doi:10.20944/preprints202002.0037.v1

Covalent Organic Framework-Functionalized Magnetic CuFe₂O₄/Ag Nanoparticles for the Reduction of 4-Nitrophenol

Chen Hou, Dongyan Zhao, Wenqiang Chen, Hao Li, Sufeng Zhang, Chen Liang

Subject: Chemistry, Applied Chemistry Keywords: magnetic covalent organic frameworks; nanocomposite; core-shell; p-nitrophenol; reduction

Online: 4 February 2020 (05:09:06 CET)

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Preprint ARTICLE | doi:10.20944/preprints202001.0307.v1

Hybrid TiO₂-Polyaniline Photocatalysts and Their Application in Building Gypsum Plasters

Agnieszka Sulowska, Izabela Wysocka, Daniel Pelczarski, Anna Zielińska-Jurek

Subject: Chemistry, Applied Chemistry Keywords: hybrid nanocomposites; polyaniline; titanium(IV) oxide; photocatalytic gypsum plaster

Online: 26 January 2020 (04:32:12 CET)

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Working Paper ARTICLE

An Efficient Electrocatalyst for Oxygen Evolution Reaction in Alkaline Solutions Derived from a Copper Chelate Polymer via in-situ Electrochemical Transformation

Ridwan P. Putra, Hideyuki Horino, Izabela I. Rzeznicka

Subject: Chemistry, Applied Chemistry Keywords: electrocatalyst; oxygen evolution reaction; dithiooxamide; chelate polymers; copper oxides; metal-air batteries; alkaline

Online: 21 January 2020 (09:04:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202001.0056.v1

Rapid Removal of Azophloxine via Catalytic Degradation by A Novel Heterogeneous Catalyst under Visible Light

Di Wu, Kequan Xia, Chengzhu Fang, Xuegang Chen, Ying Ye

Subject: Chemistry, Applied Chemistry Keywords: peroxymonosulfate; ferric alginate; activated carbon fiber; visible radiation; heterogeneous photocatalysis

Online: 7 January 2020 (10:32:48 CET)

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Preprint ARTICLE | doi:10.20944/preprints201912.0281.v1

Genetic Algorithm Design of MOF-Based Gas Sensor Arrays for CO₂-in-Air Sensing

Brian A. Day, Christopher E. Wilmer

Subject: Chemistry, Applied Chemistry Keywords: genetic algorithms; MOFs; metal-organic frameworks; molecular modelling; arrays

Online: 21 December 2019 (10:55:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints201911.0332.v1

Dispersion-Free Extraction of In(III) from HCl Solutions Using a Liquid Membrane Containing HA324H⁺Cl^-Ionic Liquid

Francisco J. Alguacil, Félix A. López

Subject: Chemistry, Applied Chemistry Keywords: indium(III); ionic liquid; liquid membranes; Hostarex A324; transport

Online: 27 November 2019 (05:04:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints201911.0203.v1

On the Active Adsorption of Chromium(III) from Alkaline Solutions Using Multi-Walled Carbon Nanotubes

Francisco J. Alguacil, Félix A. López

Subject: Chemistry, Applied Chemistry Keywords: carbon nanotubes; chromium; wastewaters; adsorption

Online: 17 November 2019 (13:17:04 CET)

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Preprint ARTICLE | doi:10.20944/preprints201910.0196.v1

Dual-Wavelength (UV and Blue) Controlled Photopolymerization Confinement for 3D-Printing: Modeling and Analysis of Measurements

Jui-Teng Lin, Da-Chuan Cheng, Kuo-Ti Chen, Hsia-Wei Liu

Subject: Chemistry, Applied Chemistry Keywords: kinetic model; dual-wavelength; photopolymerization; spatial confirmation; additive manufacturing; 3d printing

Online: 17 October 2019 (12:33:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201909.0311.v1

Tough Polyelectrolyte Hydrogels with Antimicrobial Property via Incorporation of Natural Multivalent Phytic Acid

Hoang Linh Bui, Chun-Jen Huang

Subject: Chemistry, Applied Chemistry Keywords: polyelectrolyte; quaternary ammonium; phytic acid; multivalent ion effect; ion bridges; specific ion effect

Online: 27 September 2019 (10:37:36 CEST)

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Working Paper ARTICLE

Preparation and Characterization of Polyvinyl Guanidineacetic (PVG) Membrane for Biodiesel Production

Wenying Shi, Hongbin Li, Bin Yu, Haixia Zhang, Yuheng Su

Subject: Chemistry, Applied Chemistry Keywords: PVG (polyvinyl Guanidineacetic); PVA (polyvinyl alcohol); guanidineacetic groups; biodiesel; transesterification

Online: 21 September 2019 (01:38:06 CEST)

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Preprint REVIEW | doi:10.20944/preprints201909.0244.v1

Cofactor F₄₂₀-Dependent Enzymes: An Under-Explored Resource for Asymmetric Redox Biocatalysis

Mihir V. Shah, James Antoney, Suk Woo Kang, Andrew C. Warden, Carol J. Hartley, Hadi Nazem-Bokaee, Colin J. Jackson, Colin Scott

Subject: Chemistry, Applied Chemistry Keywords: cofactor F420; deazaflavin; oxidoreductase; hydride transfer; hydrogenation; asymmetric synthesis; cofactor biosynthesis

Online: 21 September 2019 (01:28:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201909.0221.v1

The ex-situ immobilization experiment of heavy metals in dredged marine sediments from Bohai Bay, China

Wensi Zhang, Xiao Wang, Baolin Liu

Subject: Chemistry, Applied Chemistry Keywords: dredged marine sediment; heavy metal; immobilization; kaolinite; limestone

Online: 19 September 2019 (11:24:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201909.0110.v1

Sulfonated Carbon Material as An Efficient Solid Acid Catalyst for Biodiesel Synthesis via Oleic Acid Esterification Under High Voltage Conditions

Mohammad Mahdavi, Amir hosein Darab

Subject: Chemistry, Applied Chemistry Keywords: solid acid; sulfonated carbon; high voltage; biodiesel; oleic acid

Online: 10 September 2019 (11:59:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201908.0255.v1

Macrodebris and Microplastics Pollution in Nigeria: First Report on Abundance, Distribution and Composition

Enyoh Christian Ebere, Verla Andrew Wirnkor, Verla Evelyn Ngozi, Ihenetu Stanley Chukwuemeka

Subject: Chemistry, Applied Chemistry Keywords: anthropogenic activities; coastal pollution; marine litter; Nigeria environment; plastics

Online: 25 August 2019 (16:42:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201908.0254.v1

Evaluation of In-Vitro Release Kinetic and Mechanisms of Curcumin Loaded-Cockle Shell-Derived Calcium Carbonate Nanoparticles

Maryam Muhammad Mailafiya, Kabeer Abubakar, Abubakar Danmaigoro, Samaila Musa Chiroma, Ezamin Bin Abdul Rahim, Mohamad Aris Mohd Moklas, Zuki Abu Bakar Zakaria

Subject: Chemistry, Applied Chemistry Keywords: cockleshell; nanoparticles; curcumin; aragonite; therapeutics; kinetic release

Online: 25 August 2019 (15:47:58 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints201908.0192.v1

Generation of Optical Absorption Band in Colloidal Coffee at Extremely Alkaline pH

Arindam Kushagra, Akshaya Pandey

Subject: Chemistry, Applied Chemistry Keywords: caffeine; colloidal coffee; optical absorption; pH sensor; solute-solvent interactions; UV absorber

Online: 19 August 2019 (04:14:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201908.0093.v1

Extraction of Polyphenols and Synthesis of New Activated Carbon from Spent Coffee Grounds

Félix Antonio López, Marina Ramón Gonçalves, Lorena Alcaraz, Susana Pérez Ferreras, María Eugenia León González, Noelia Rosales Conrado

Subject: Chemistry, Applied Chemistry Keywords: Spent coffee grounds; polyphenols; extraction; subcritical fluid; activated carbon; methylene blue, adsorption.

Online: 7 August 2019 (10:03:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201908.0076.v1

Dysprosium Removal from Water Using Active Carbons Obtained from Spent Coffee Ground

Lorena Alcaraz, María Esther Escudero, Francisco J. Alguacil, Irene Llorente, Ana Urbieta, Paloma Fernández, Félix Antonio López

Subject: Chemistry, Applied Chemistry Keywords: dysprosium; activated carbon; spent coffee ground; adsorption

Online: 6 August 2019 (12:23:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201907.0252.v1

A Green Ultrasound-Assisted Extraction Optimization of the Natural Antioxidant and Anti-aging Flavonolignans from Milk Thistle Silybum marianum (L.) Gaertn. Fruits for Cosmetic Applications

Samantha Drouet, Emilie Leclerc, Laurine Garros, Duangjai Tungmunnithum, Atul Kabra, Bilal Haider Abbasi, Eric Lainé, Christophe Hano

Subject: Chemistry, Applied Chemistry Keywords: Silybum marianum; silymarin; flavonolignans; ultrasound-assisted extraction; design of experiement; antioxidant; anti-aging

Online: 23 July 2019 (09:51:35 CEST)

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Preprint REVIEW | doi:10.20944/preprints201907.0195.v1

Interactions of Nanoparticles and Biosystems: Microenvironment of Nanoparticles and Biomolecules in Nanomedicine

Carlota Auria-Soro, Tabata Nesma, Pablo Juanes-Velasco, Alicia Landeira-Viñuela, Helena Fidalgo-Gomez, Vanessa Acebes-Fernandez, Rafael Gongora, Maria Jesus Almendral Parra, Raul Manzano-Roman, Manuel Fuentes

Subject: Chemistry, Applied Chemistry Keywords: Nanoparticles, interactions, protein corona, nanomedicine

Online: 16 July 2019 (12:36:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201907.0111.v1

Interaction and Surface Modification of Biomaterials with Cells Based on Carbon Nanomaterials

Vajradhar Lather

Subject: Chemistry, Applied Chemistry Keywords: carbon nanomaterials; biological materials; cell interactions; surface decoration

Online: 8 July 2019 (08:21:09 CEST)

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Working Paper ARTICLE

Development of Nitride-Sensors for Monitoring in Control Systems

Monzer Krishan, Ahmad Alkhawaldeh, Abdel-Hamid Soliman

Subject: Chemistry, Applied Chemistry Keywords: Diluted magnetic semiconductors (DMS), Manganese Mn-doped GaN (Mn.Gac.N), Spintronic, Opto-electronic devices

Online: 17 May 2019 (16:16:22 CEST)

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Preprint REVIEW | doi:10.20944/preprints201905.0138.v1

Low-Power Detection of Food Preservatives by a Novel Nanowire-Based Sensor Array

Dario Zappa

Subject: Chemistry, Applied Chemistry Keywords: metal-oxides nanowires; chemical sensing; sensor array; electronic noses, food preservation

Online: 13 May 2019 (01:44:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0178.v1

Viability of 4 Wild Strains L. paraplantarum, L. plantarum, W. paramesenteroides, and E. faecalis in Fermented Probiotic Grape Marmalade during Storage at both 5°C and 25°C

Lesly Samedi, Albert Linton Charles

Subject: Chemistry, Applied Chemistry Keywords: anti-oxidative properties; DPPH; grape marmalade; lactobacillus; probiotics

Online: 16 April 2019 (10:27:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0075.v1

PEGylated Polyurea Bearing Hindered Urea Bond for Drug Delivery

Meishan Chen, Xiangru Feng, Weiguo Xu, Yanqiao Wang, Yanan Yang, Zhongyu Jiang, Jianxun Ding

Subject: Chemistry, Applied Chemistry Keywords: amphiphilc copolymer; hydrolyzable polyurea; micelle; controlled drug delivery; cancer chemotherapy

Online: 8 April 2019 (08:35:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0066.v1

A Correction Method of Mixed Pesticide Content Prediction in Apple by Using Raman Spectra

Yan Li, Yankun Peng, Jianwei Qin, Kuanglin Chao

Subject: Chemistry, Applied Chemistry Keywords: Raman spectra; mixed pesticides; apple; correction method; rapid; real-time

Online: 5 April 2019 (15:17:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0035.v1

Dual Monitoring of Cracking and Healing in Self-healing Coatings using Microcapsules Loaded with Two Fluorescent Dyes

Young Kyu Song, Tae Hee Lee, Jin Chul Kim, Kyu Cheol Lee, Sang Ho Lee, Seung Man Noh, Young Il Park

Subject: Chemistry, Applied Chemistry Keywords: Extrinsic self-healing; Self-healing detection; Aggregation-induced emission; Dye-Loaded microcapsule; Self-healing monitoring

Online: 2 April 2019 (15:32:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0006.v1

Facile Synthesis of Di-Mannitol Adipate Ester-Based Zinc Metal Alkoxide As Bi-Functional Additives for PVC

Yuepeng Li, Degang Li, Wenyuan Han, Manqi Zhang, Bing Ai, Lipeng Zhang, Hongqi Sun, Zhen Cui

Subject: Chemistry, Applied Chemistry Keywords: PVC; thermal stabilizers; bi-functional; di-mannitol adipate ester-based zinc metal alkoxide; plasticizers

Online: 1 April 2019 (10:08:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201903.0084.v1

Exploring the Influence of the Microstructure on the Passive Layer Chemistry and Breakdown for Some Titanium-Based Alloys in Normal Saline Solution

Nader El-Bagoury, Sameh Ibrahim, Ola Ahmed Abu Ali, Shimaa El-Hadad, Ahmed M. Fallatah, G.A.M. Mersal, Mohamed M. Ibrahim, Joanna Wysocka, Jacek Ryl, Rabah Boukherroub, Mohammed A. Amin

Subject: Chemistry, Applied Chemistry Keywords: titanium-based alloys; microstructure; passivity breakdown; pitting corrosion

Online: 7 March 2019 (06:49:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints201809.0458.v2

Microwave Assisted Novel Efficient Pd-free Catalyst for Suzuki C-C Coupling Reaction

Ghalia Alzhrani, Nesreen Ahmed, Elham Aazam , Mohamed Mokhtar, Tamer Saleh

Subject: Chemistry, Applied Chemistry Keywords: Suzuki coupling reaction; Layered double hydroxides; Solid base catalyst; Microwave irradiation

Online: 8 January 2019 (15:13:46 CET)

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Preprint ARTICLE | doi:10.20944/preprints201812.0263.v1

Phase Change and Regeneration Behaviors of Amino Acid Ionic Liquids Absorbents

Xueqin Chen, Hui Guo, Huang Ouyang, Qiongfang Song, Zhengguang Sun, Ziqiang Xu, Cao Li, Bingbing Jiang

Subject: Chemistry, Applied Chemistry Keywords: Amino acid ionic liquid; phase change solvent; high CO2 absorption capacity; mechanism of phase change; recycling ability

Online: 21 December 2018 (15:26:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints201810.0123.v4

Chitosan Decorated Copper Nanoparticles as Efficient Catalyst for Synthesis of Novel Quinoline Derivatives

Kahdijah S. Alghamdi, Nesreen S.I. Ahmed, D. Bakhotmah, Mohamed Mokhtar M. Mostafa

Subject: Chemistry, Applied Chemistry Keywords: chitosan-copper NPs; quinolone derivatives; ultrasonic irradiation; one- pot synthesis; green-sustainable perspectives

Online: 19 December 2018 (03:25:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints201810.0123.v3

Chitosan Decorated Copper Nanoparticles as Efficient Catalyst for One-Pot Multicomponent Synthesis of Novel Quinoline Derivatives: Sustainable Perspectives

Kahdijah S. Alghamdi, Nesreen Ahmed, D. Bakhotmah, Mohamed Mokhtar M. Mostafa

Subject: Chemistry, Applied Chemistry Keywords: chitosan-copper NPs; quinolone derivatives; ultrasonic irradiation; one- pot synthesis; green-sustainable perspectives

Online: 2 December 2018 (09:48:29 CET)

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Preprint ARTICLE | doi:10.20944/preprints201811.0333.v1

Experimental and theoretical study on the synergistic inhibition effect of yridine derivatives and sulfur-containing compounds on the corrosion of carbon steel in CO2-saturated 3.5 wt.% NaCl solution

Junlei Tang, Yuxin Hu, Zhongzhi Han, Hu Wang, Yuanqiang Zhu, Yuan Wang, Zhen Nie, Yingying Wang

Subject: Chemistry, Applied Chemistry Keywords: Corrosion inhibitor; Synergistic effect; Electrochemical measurements; Theoretical calculation

Online: 14 November 2018 (10:23:29 CET)

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Preprint ARTICLE | doi:10.20944/preprints201811.0091.v1

The Synthesis and Characterisations of Porous Thioamide-Sulfonated-Modified Poly (Acrylonitrile-Co-Divinylbenzene-80) as a Potential Sorbent to Capture Polar Analytes

Farhana Syakirah Ismail, Siti Nurul Ain Md. Jamil, Peter A. G. Cormack, Luqman Chuah Abdullah, Sazlinda Kamaruzaman, Rusli Daik

Subject: Chemistry, Applied Chemistry Keywords: polyacrylonitrile; chemical modification; thiourea; polar pharmaceuticals; sulphonation; dispersion-solid phase extraction

Online: 5 November 2018 (08:48:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints201811.0021.v1

An In-Vitro Evaluation of the Capacity of Local Tanzanian Crude Clay and Ash Based Materials in Binding Aflatoxins in Solution

Emmanuel Ayo, Athanasia Matemu, Germana Laswai, Martin Kimanya

Subject: Chemistry, Applied Chemistry Keywords: clays; ashes aflatoxins; binding capacity; in-vitro and contaminated feeds

Online: 2 November 2018 (05:23:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints201811.0011.v1

Synthesis of Novel Biologically Active Thiazole Dyes and Their Applications

Sarra Abu-Melha

Subject: Chemistry, Applied Chemistry Keywords: thiazolyl dyes; anticancer; antioxidant; colour assessment

Online: 2 November 2018 (04:28:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints201810.0123.v2

Chitosan Decorated Copper Nanoparticles as Efficient Catalyst for One-Pot Multicomponent Synthesis of Novel Quinoline Derivatives: Sustainable Perspectives

Kahdijah S. Alghamdi, Nesreen S.I. Ahmed, D. Bakhotmah, Mohamed Mokhtar

Subject: Chemistry, Applied Chemistry Keywords: chitosan-copper NPs; quinolone derivatives; ultrasonic irradiation; one- pot synthesis; green-sustainable perspectives

Online: 22 October 2018 (10:55:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0227.v1

Fabrication and Internal Functionalization of Highly Macroporous WO₃Thin Films

Maria Ojeda, Cale Gaster, Clifton Harris

Subject: Chemistry, Applied Chemistry Keywords: thin films; WO3; photocatalysis

Online: 11 October 2018 (04:10:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0167.v1

Phytosterol Composition of Arachis hypogaea Seeds from Different Maturity Classes

Wenxu Zhou, William D. Branch, Lissa Gilliam, Julie A. Marshall

Subject: Chemistry, Applied Chemistry Keywords: phytosterols; mesocarp; oilseed; maturity; pod-blast; α-tocopherol; oil bodies; campesterol; stigmasterol; β-sitosterol

Online: 9 October 2018 (04:02:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0607.v1

Effects of Limonene on the PAHs mutagenicity risk in Roasted Fish Skin

Yu-Wei Chen, Ping-Hsiu Huang, Yung-Hsiang Tsai, Chii-Ming Jiang, Chih-Yao Hou

Subject: Chemistry, Applied Chemistry Keywords: Roasted Fish Skin, PAHs mutagenicity risk, Limonene

Online: 30 September 2018 (10:03:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0552.v1

Preparation of Renewable Bio-Polyols from Two Species of Colliguaja for Rigid Polyurethane Foams

Diana Abril-Milán, Oscar Valdés, Yaneris Mirabal-Gallardo, Alexander F. de la Torre, Carlos Bustamante, Jorge Contreras

Subject: Chemistry, Applied Chemistry Keywords: Colliguaya integerrima; Colliguaja salicifolia; vegetable oil; bio-polyol; renewable resources

Online: 28 September 2018 (04:44:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0458.v1

Microwave Assisted Novel Efficient Pd-free Catalyst for Suzuki C-C Coupling Reaction

Ghalia Alzhrani, Nesreen Ahmed, Elham Aazam , Mohamed Mokhtar

Subject: Chemistry, Applied Chemistry Keywords: Suzuki coupling reaction; Layered double hydroxides; Solid base catalyst; Microwave irradiation

Online: 24 September 2018 (13:10:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0447.v1

Photoactive ZnO Materials for Solar Light Induced Cu_xO-ZnO Catalyst Preparation

Magdalena Brzezińska, Patricia García-Muñoz, Agnieszka Ruppert, Nicolas Keller

Subject: Chemistry, Applied Chemistry Keywords: ZnO; photo-oxidation; 4-chlorophenol; CuxO-ZnO catalyst; photodeposition

Online: 22 September 2018 (23:38:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0402.v1

Application of New Sodium Vinyl Sulfonate-co-2-Acrylamido-2-methylpropane Sulfonic Acid Sodium Salt—Magnetite Cryogel Nanocomposites for Fast Methylene Blue Removal from Industrial Waste Water

Ayman M. Atta, Sami A. Al-Hussain, Hamad A. Al-Lohedan, Abdelrahman O. Ezzat, Ahmed M. Tawfeek

Subject: Chemistry, Applied Chemistry Keywords: methylene blue; water treatment; magnetic nanomaterials; cryogel; nanocomposites

Online: 20 September 2018 (06:33:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0265.v1

Lignocellulosic Biomass as Source for Lignin-Based Environmentally Benign Antioxidants

Abla Alzagameem, Basma El Khaldi-Hansen, Dominik Büchner, Michael Larkins, Birgit Kamm, Steffen Witzleben, Margit Schulze

Subject: Chemistry, Applied Chemistry Keywords: antioxidant activity, biomass, Folin-Ciocalteu assay, lignin, lignocellulose feedstock, organosolv, total phenol content

Online: 14 September 2018 (13:29:47 CEST)

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Antioxidant activity is an essential feature required for oxygen-sensitive merchandise and goods, such as food and corresponding packaging as well as materials used in cosmetics and biomedicine. For example, vanillin, one of the most prominent antioxidants, is fabricated from lignin, the second most abundant natural polymer in the world. Antioxidant potential is primarily related to the termination of oxidation propagation reactions through hydrogen transfer. The application of technical lignin as a natural antioxidant has not yet been implemented in the industrial sector, mainly due to the complex heterogeneous structure and polydispersity of lignin. Thus, current research focuses on various isolation and purification strategies to improve the compatibility of lignin material with substrates and enhancing its stabilizing effect. This contribution presents antioxidant capacity studies of various lignins depending on purification degree of the raw material. In detail, the antioxidant potential of lignin-based compounds is studied using the DPPH (2,2-diphenyl-1-picrylhydrazyl) assay. The purification procedure was monitored by thin layer chromatography (TLC) and showed that double-fold selective extraction is the most efficient purification procedure (confirmed by UV-Vis, FTIR, HSQC and 31P NMR spectroscopy, SEC and XRD analysis). Results are discussed regarding the dependency of antioxidant activity on lignin structure and biomass source. Thus, lignins obtained from industrial black liquor are compared with beech wood samples. In addition, the influence of lignin isolation (kraft versus organosolv) is discussed. Values of the antioxidant activity (DPPH inhibition) of kraft lignin fractions were 62-68% while beech and spruce/pine-mixed lignins showed values between 26, 64 and 42%, respectively. TPC values of the different isolated kraft lignin fractions varied between 26-35%, while beech, spruce/pine lignins were 34, 30 and 34%, respectively. Storage decreased the TPC values and increased the DPPH inhibition.

Preprint REVIEW | doi:10.20944/preprints201809.0218.v1

Chirality Induction in Bioorganometallic Conjugates

Toshiyuki Moriuchi, Satoshi D. Ohmura, Takayo Moriuchi-Kawakami

Subject: Chemistry, Applied Chemistry Keywords: chirality induction; helical chirality; bioorganometallic conjugate; dipeptide; nucleobase; ferrocene; organogold(I); self-assembly; hydrogen bond; Au(I)-Au(I) interaction

Online: 12 September 2018 (11:25:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0036.v1

UV sensitization of nitrate and sulfite: A powerful tool for groundwater remediation

Yaal Lester, Asmaa Dabash, Darine Eghbareya

Subject: Chemistry, Applied Chemistry Keywords: Photo-sensitization; nitrate; sulfite, 1,4-dioxane, groundwater

Online: 3 September 2018 (13:45:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201808.0445.v1

Sunlight Assisted Photocatalytic Degradation of Ciprofloxacin in Water Using Fe Doped ZnO Nanoparticles for Potential Public Health Applications

Sourav Das, Soumen Ghosh, Ananyo Jyoti Misra, Amrita Mishra, Ashok J. Tamhankar, Cecilia Stålsby Lundborg, Suraj K. Tripathy

Subject: Chemistry, Applied Chemistry Keywords: antibiotic residues; aquatic environment; ciprofloxacin; Fe doped ZnO nanoparticles; photocatalysis; sunlight

Online: 27 August 2018 (09:01:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201808.0328.v1

Spatial Distribution of DDT and Its Metabolites in Soils from Indoor Residual Spraying in Tshilamusi Village, Limpopo

Wilson Gitari, Tonderai Makoni, Vernon Somerset, Omotola Babajide

Subject: Chemistry, Applied Chemistry Keywords: application; organochlorine; pesticides; metabolites; homesteads; soils

Online: 18 August 2018 (07:53:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201808.0095.v1

Supported Bimetallic AuPd Nanoparticles as Catalyst for the Solvent-Free Selective Hydrogenation of Nitroarenes

Ruiyang Qu, Margherita Macino, Sarwat Iqbal, Xiang Gao, Qian He, Graham J. Hutchings, Meenakshisundaram Sankar

Subject: Chemistry, Applied Chemistry Keywords: bimetallic nanoparticles, solvent free hydrogenation, nitrobenzene and chloronitrobenzene.

Online: 5 August 2018 (23:00:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201808.0050.v1

High Active and Selective Ni/Ceo₂-Al₂O₃and Pd-Ni/Ceo₂-Al₂O₃ Catalysts for Oxy-Steam Reforming of Methanol

Pawel Mierczynski, Agnieszka Mierczynska, Radoslaw Ciesielski, Magdalena Mosinska, Waldemar Maniukiewicz, Magdalena Nowosielska, Agnieszka Czylkowska, Malgorzata Szynkowska, Krasimir Vasilev

Subject: Chemistry, Applied Chemistry Keywords: OSRM; nickel; bimetallic catalyst; heterogeneous catalysis; Pd-Ni

Online: 2 August 2018 (16:54:10 CEST)

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CHEMISTRY