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Peroxydisulphate activated FTO-WO(3) nanorods based photoelectrocatalytic degradation of tetracycline: Intermediate products, degradation pathway and ecotoxicity studies

This work reports sulphate radical assisted photoelectrocatalytic (SR-PEC) degradation of tetracycline using a visible light active fluorine-doped tin oxide – tungsten trioxide nanorods (FTO-WO(3) NRs) photoanode. The WO(3) NRs were synthesised via the hydrothermal method and then conducted on the F...

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Detalles Bibliográficos
Autores principales: Koiki, Babatunde A., Arotiba, Omotayo A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10590805/
https://www.ncbi.nlm.nih.gov/pubmed/37876427
http://dx.doi.org/10.1016/j.heliyon.2023.e20882
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author Koiki, Babatunde A.
Arotiba, Omotayo A.
author_facet Koiki, Babatunde A.
Arotiba, Omotayo A.
author_sort Koiki, Babatunde A.
collection PubMed
description This work reports sulphate radical assisted photoelectrocatalytic (SR-PEC) degradation of tetracycline using a visible light active fluorine-doped tin oxide – tungsten trioxide nanorods (FTO-WO(3) NRs) photoanode. The WO(3) NRs were synthesised via the hydrothermal method and then conducted on the FTO glass to form a photoanode. When the photoanode was applied without sulphate radicals for PEC degradation, 10 % of the tetracycline was degraded. Conversely, when 3 mM persulphate was added, the extent of tetracycline degraded was 88 % using the UV–vis spectrophotometer and 99 % using the ultra-performance liquid chromatography mass spectrometer (UPLC-MS) within 90 min at 1.5 V. The mechanism of tetracycline degradation was proposed based on the intermediate products identified using UPLC-MS and the extent of toxicity was evaluated using quantitative structure activity relationship (QSAR) analysis. Trapping experiment revealed that the photogenerated holes, sulphate radicals, and hydroxyl radicals were the oxidants that significantly took part in the degradation of tetracycline. Overall, the electrode was stable and reusable, therefore suggesting the suitability of FTO-WO(3) NRs photoanode in the presence of sulphate radicals towards the decontamination of water laden with pharmaceutical pollutants.
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spelling pubmed-105908052023-10-24 Peroxydisulphate activated FTO-WO(3) nanorods based photoelectrocatalytic degradation of tetracycline: Intermediate products, degradation pathway and ecotoxicity studies Koiki, Babatunde A. Arotiba, Omotayo A. Heliyon Research Article This work reports sulphate radical assisted photoelectrocatalytic (SR-PEC) degradation of tetracycline using a visible light active fluorine-doped tin oxide – tungsten trioxide nanorods (FTO-WO(3) NRs) photoanode. The WO(3) NRs were synthesised via the hydrothermal method and then conducted on the FTO glass to form a photoanode. When the photoanode was applied without sulphate radicals for PEC degradation, 10 % of the tetracycline was degraded. Conversely, when 3 mM persulphate was added, the extent of tetracycline degraded was 88 % using the UV–vis spectrophotometer and 99 % using the ultra-performance liquid chromatography mass spectrometer (UPLC-MS) within 90 min at 1.5 V. The mechanism of tetracycline degradation was proposed based on the intermediate products identified using UPLC-MS and the extent of toxicity was evaluated using quantitative structure activity relationship (QSAR) analysis. Trapping experiment revealed that the photogenerated holes, sulphate radicals, and hydroxyl radicals were the oxidants that significantly took part in the degradation of tetracycline. Overall, the electrode was stable and reusable, therefore suggesting the suitability of FTO-WO(3) NRs photoanode in the presence of sulphate radicals towards the decontamination of water laden with pharmaceutical pollutants. Elsevier 2023-10-12 /pmc/articles/PMC10590805/ /pubmed/37876427 http://dx.doi.org/10.1016/j.heliyon.2023.e20882 Text en © 2023 The Authors https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Research Article
Koiki, Babatunde A.
Arotiba, Omotayo A.
Peroxydisulphate activated FTO-WO(3) nanorods based photoelectrocatalytic degradation of tetracycline: Intermediate products, degradation pathway and ecotoxicity studies
title Peroxydisulphate activated FTO-WO(3) nanorods based photoelectrocatalytic degradation of tetracycline: Intermediate products, degradation pathway and ecotoxicity studies
title_full Peroxydisulphate activated FTO-WO(3) nanorods based photoelectrocatalytic degradation of tetracycline: Intermediate products, degradation pathway and ecotoxicity studies
title_fullStr Peroxydisulphate activated FTO-WO(3) nanorods based photoelectrocatalytic degradation of tetracycline: Intermediate products, degradation pathway and ecotoxicity studies
title_full_unstemmed Peroxydisulphate activated FTO-WO(3) nanorods based photoelectrocatalytic degradation of tetracycline: Intermediate products, degradation pathway and ecotoxicity studies
title_short Peroxydisulphate activated FTO-WO(3) nanorods based photoelectrocatalytic degradation of tetracycline: Intermediate products, degradation pathway and ecotoxicity studies
title_sort peroxydisulphate activated fto-wo(3) nanorods based photoelectrocatalytic degradation of tetracycline: intermediate products, degradation pathway and ecotoxicity studies
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10590805/
https://www.ncbi.nlm.nih.gov/pubmed/37876427
http://dx.doi.org/10.1016/j.heliyon.2023.e20882
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