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

doi:10.20944/preprints202208.0289.v1

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preprints.org > chemistry and materials science > applied chemistry > doi: 10.20944/preprints202208.0289.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

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

^* ,

Elisabeth E. Jacobsen

Version 1 : Received: 15 August 2022 / Approved: 16 August 2022 / Online: 16 August 2022 (11:12:42 CEST)

A peer-reviewed article of this Preprint also exists.

Ion, S.G.; Pavel, O.D.; Guzo, N.; Tudorache, M.; Coman, S.M.; Parvulescu, V.I.; Cojocaru, B.; Jacobsen, E.E. Use of Photocatalytically Active Supramolecular Organic–Inorganic Magnetic Composites as Efficient Route to Remove β-Lactam Antibiotics from Water. Catalysts 2022, 12, 1044. Ion, S.G.; Pavel, O.D.; Guzo, N.; Tudorache, M.; Coman, S.M.; Parvulescu, V.I.; Cojocaru, B.; Jacobsen, E.E. Use of Photocatalytically Active Supramolecular Organic–Inorganic Magnetic Composites as Efficient Route to Remove β-Lactam Antibiotics from Water. Catalysts 2022, 12, 1044.

Abstract

Considerable efforts have been made in recent years to identify an optimal treatment method for the removal of antibiotics from wastewaters. A series of supramolecular organic-inorganic magnetic composites containing Zn-modified MgAl LDHs and Cu-phthalocyanine as photosensitizer have been prepared with the scope to β-lactam antibiotics removal from aqueous solutions. The characterization of these materials confirmed the anchorage of Cu-phthalocyanine onto the edges of the LDH lamellae, with a negligible part inserted in the interlayer space. The removal of β-lactam antibiotics occurred via a concerted adsorption and photocatalytic degradation. The efficiency of the composites was depending on i) the LDH: magnetic nanoparticle (MP) ratio, that is strongly correlated to the textural properties of the catalysts, and ii) the phthalocyanine loading in the final composite. A maximum of the efficiency was achieved with a removal of ~93% of antibiotics after 2h of reaction.

Keywords

layered double hydroxides; magnetic nanoparticles; phthalocyanines; antibiotics removal

Subject

Chemistry and Materials Science, Applied 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.

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