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Synthesis of ZnO Nanoparticles by Using Rosmarinus officinalis Extract and Their Application for Methylene Bleu and Crystal Violet Dyes Degradation under Sunlight Irradiation
Version 1
: Received: 31 March 2021 / Approved: 2 April 2021 / Online: 2 April 2021 (08:11:51 CEST)
How to cite:
Al-Garni, T.; A.Y. Abduh, N.; Al-Kahtani, A.; Aouissi, A. Synthesis of ZnO Nanoparticles by Using Rosmarinus officinalis Extract and Their Application for Methylene Bleu and Crystal Violet Dyes Degradation under Sunlight Irradiation. Preprints2021, 2021040038. https://doi.org/10.20944/preprints202104.0038.v1
Al-Garni, T.; A.Y. Abduh, N.; Al-Kahtani, A.; Aouissi, A. Synthesis of ZnO Nanoparticles by Using Rosmarinus officinalis Extract and Their Application for Methylene Bleu and Crystal Violet Dyes Degradation under Sunlight Irradiation. Preprints 2021, 2021040038. https://doi.org/10.20944/preprints202104.0038.v1
Al-Garni, T.; A.Y. Abduh, N.; Al-Kahtani, A.; Aouissi, A. Synthesis of ZnO Nanoparticles by Using Rosmarinus officinalis Extract and Their Application for Methylene Bleu and Crystal Violet Dyes Degradation under Sunlight Irradiation. Preprints2021, 2021040038. https://doi.org/10.20944/preprints202104.0038.v1
APA Style
Al-Garni, T., A.Y. Abduh, N., Al-Kahtani, A., & Aouissi, A. (2021). Synthesis of ZnO Nanoparticles by Using <em>Rosmarinus officinalis</em> Extract and Their Application for Methylene Bleu and Crystal Violet Dyes Degradation under Sunlight Irradiation. Preprints. https://doi.org/10.20944/preprints202104.0038.v1
Chicago/Turabian Style
Al-Garni, T., Abdullah Al-Kahtani and Ahmed Aouissi. 2021 "Synthesis of ZnO Nanoparticles by Using <em>Rosmarinus officinalis</em> Extract and Their Application for Methylene Bleu and Crystal Violet Dyes Degradation under Sunlight Irradiation" Preprints. https://doi.org/10.20944/preprints202104.0038.v1
Abstract
Zinc oxide (ZnO) nanoparticles (NPs) were synthesized using Rosmarinus officinalis leaf extract at 80 ° C (ZnO-80) and 180 ° C (ZnO-180). The biosynthesized ZnO NPs were characterized and their photocatalytic activity was evaluated for the degradation of methylene blue (MB) and crystal violet (CV) under sunlight irradiation. The results of the characterizations by XRD, TEM and SEM showed that the size of the NPs of ZnO-80 was smaller than that of ZnO-180 which exhibited flakier agglomerated spherical structures. Photocatalytic tests showed ZnO-80 which was prepared by a cheap and easy procedure compared to ZnO-180 effectively degrades MB and CV dyes under sunlight. The superior performance of ZnO-80 over ZnO-180 can be explained by the differences in their textural properties. This is because ZnO-80 has a smaller crystallite size, a specific surface area and a higher pore volume than ZnO-180. Fourier-transform infrared spectroscopy (FTIR) analyzes revealed that both samples contained an adsorbed carboxylate group (COO-), and accordingly a mechanism was proposed for the formation of ZnO NPs that include the carboxyl group.
Chemistry and Materials Science, Analytical Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
