Efficient degradation and mineralization of diclofenac in water on ZnMe (Me: Al; Co; Ga) layered double hydroxides and derived mixed oxides as novel photocatalysts

The removal of diclofenac (DCF) from aqueous solutions was attempted using photocatalytic processes, involving a series of novel photocatalysts based on ZnMe (Me: Al; Co; Ga) layered double hydroxides (LDHs) and their derived mixed oxides. The catalysts were characterized using specific techniques....

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Main Authors: Grosu, Elena-Florentina, Seftel, Elena, Cuykx, Matthias, Mertens, Myrjam, Covaci, Adrian, Cool, Pegie, Carja, Gabriela
Format: Article
Language:English
Published: Académie des sciences 2022-05-01
Series:Comptes Rendus. Chimie
Subjects:
Online Access:https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.167/
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author Grosu, Elena-Florentina
Seftel, Elena
Cuykx, Matthias
Mertens, Myrjam
Covaci, Adrian
Cool, Pegie
Carja, Gabriela
author_facet Grosu, Elena-Florentina
Seftel, Elena
Cuykx, Matthias
Mertens, Myrjam
Covaci, Adrian
Cool, Pegie
Carja, Gabriela
author_sort Grosu, Elena-Florentina
collection DOAJ
description The removal of diclofenac (DCF) from aqueous solutions was attempted using photocatalytic processes, involving a series of novel photocatalysts based on ZnMe (Me: Al; Co; Ga) layered double hydroxides (LDHs) and their derived mixed oxides. The catalysts were characterized using specific techniques. Under solar light, ZnCo and ZnGa catalysts degraded almost completely DCF from water, while the mineralization, expressed by total organic carbon removal, reached $\sim $85%. The degradation mechanisms of DCF photolysis and photocatalytic degradation under solar and UV irradiation were investigated.
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spelling doaj.art-5f506bc2e27c486b9a29e00f0849998c2023-10-24T14:23:21ZengAcadémie des sciencesComptes Rendus. Chimie1878-15432022-05-0125S3516710.5802/crchim.16710.5802/crchim.167Efficient degradation and mineralization of diclofenac in water on ZnMe (Me: Al; Co; Ga) layered double hydroxides and derived mixed oxides as novel photocatalystsGrosu, Elena-Florentina0Seftel, Elena1https://orcid.org/0000-0002-9028-9084Cuykx, Matthias2Mertens, Myrjam3Covaci, Adrian4https://orcid.org/0000-0003-0527-1136Cool, Pegie5https://orcid.org/0000-0002-6632-2243Carja, Gabriela6https://orcid.org/0000-0002-5568-4097Department of Chemical Engineering, Faculty of Chemical Engineering and Environmental Protection, Technical University “Gh. Asachi”, Bd. Mangeron 71, Iasi 700554, Romania; Laboratory of Adsorption and Catalysis, Department of Chemistry, University of Antwerpen (CDE), Universiteitsplein 1, 2610 Wilrijk, Antwerpen, BelgiumLaboratory of Adsorption and Catalysis, Department of Chemistry, University of Antwerpen (CDE), Universiteitsplein 1, 2610 Wilrijk, Antwerpen, Belgium; VITO Flemish Institute for Technological Research, Boeretang 200, B-2400, BelgiumToxicological Centre, Department of Pharmaceutical Sciences, University of Antwerpen, Universiteitsplein 1, 2610 Wilrijk, Antwerpen, BelgiumVITO Flemish Institute for Technological Research, Boeretang 200, B-2400, BelgiumToxicological Centre, Department of Pharmaceutical Sciences, University of Antwerpen, Universiteitsplein 1, 2610 Wilrijk, Antwerpen, BelgiumLaboratory of Adsorption and Catalysis, Department of Chemistry, University of Antwerpen (CDE), Universiteitsplein 1, 2610 Wilrijk, Antwerpen, BelgiumDepartment of Chemical Engineering, Faculty of Chemical Engineering and Environmental Protection, Technical University “Gh. Asachi”, Bd. Mangeron 71, Iasi 700554, RomaniaThe removal of diclofenac (DCF) from aqueous solutions was attempted using photocatalytic processes, involving a series of novel photocatalysts based on ZnMe (Me: Al; Co; Ga) layered double hydroxides (LDHs) and their derived mixed oxides. The catalysts were characterized using specific techniques. Under solar light, ZnCo and ZnGa catalysts degraded almost completely DCF from water, while the mineralization, expressed by total organic carbon removal, reached $\sim $85%. The degradation mechanisms of DCF photolysis and photocatalytic degradation under solar and UV irradiation were investigated.https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.167/DiclofenacPhotocatalystsLayered double hydroxidesWater pollutionPhotosensitization
spellingShingle Grosu, Elena-Florentina
Seftel, Elena
Cuykx, Matthias
Mertens, Myrjam
Covaci, Adrian
Cool, Pegie
Carja, Gabriela
Efficient degradation and mineralization of diclofenac in water on ZnMe (Me: Al; Co; Ga) layered double hydroxides and derived mixed oxides as novel photocatalysts
Comptes Rendus. Chimie
Diclofenac
Photocatalysts
Layered double hydroxides
Water pollution
Photosensitization
title Efficient degradation and mineralization of diclofenac in water on ZnMe (Me: Al; Co; Ga) layered double hydroxides and derived mixed oxides as novel photocatalysts
title_full Efficient degradation and mineralization of diclofenac in water on ZnMe (Me: Al; Co; Ga) layered double hydroxides and derived mixed oxides as novel photocatalysts
title_fullStr Efficient degradation and mineralization of diclofenac in water on ZnMe (Me: Al; Co; Ga) layered double hydroxides and derived mixed oxides as novel photocatalysts
title_full_unstemmed Efficient degradation and mineralization of diclofenac in water on ZnMe (Me: Al; Co; Ga) layered double hydroxides and derived mixed oxides as novel photocatalysts
title_short Efficient degradation and mineralization of diclofenac in water on ZnMe (Me: Al; Co; Ga) layered double hydroxides and derived mixed oxides as novel photocatalysts
title_sort efficient degradation and mineralization of diclofenac in water on znme me al co ga layered double hydroxides and derived mixed oxides as novel photocatalysts
topic Diclofenac
Photocatalysts
Layered double hydroxides
Water pollution
Photosensitization
url https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.167/
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