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Photocatalytic degradation of methylene blue by a cocatalytic PDA/TiO(2) electrode produced by photoelectric polymerization

This study reports a new method for photocatalysts to degrade organic dyes on organic semiconductors. A novel strategy is reported to form TiO(2) nanorod (NR)/polydopamine (PDA) electrodes with a photoelectric polymerization strategy for PDA (pep-PDA) to produce cocatalytic electrodes. Amperometric...

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Autores principales: Guo, Zehui, Wang, Guoqing, Fu, Haiqing, Wang, Peiqing, Liao, Jianhe, Wang, Aimin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9055324/
https://www.ncbi.nlm.nih.gov/pubmed/35519738
http://dx.doi.org/10.1039/d0ra02076a
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author Guo, Zehui
Wang, Guoqing
Fu, Haiqing
Wang, Peiqing
Liao, Jianhe
Wang, Aimin
author_facet Guo, Zehui
Wang, Guoqing
Fu, Haiqing
Wang, Peiqing
Liao, Jianhe
Wang, Aimin
author_sort Guo, Zehui
collection PubMed
description This study reports a new method for photocatalysts to degrade organic dyes on organic semiconductors. A novel strategy is reported to form TiO(2) nanorod (NR)/polydopamine (PDA) electrodes with a photoelectric polymerization strategy for PDA (pep-PDA) to produce cocatalytic electrodes. Amperometric i–t curves and UV-vis diffuse reflectance spectra were recorded and showed that compared with traditional self-polymerization (sp-PDA) and electropolymerization (ep-PDA), TiO(2) NR/pep-PDA exhibited an enhanced photocatalytic activity under visible light. As expected, TiO(2) NR/pep-PDA showed a significant improvement for the degradation of methylene blue (MB) under visible light, which can be attributed to the strong absorption of PDA in the visible light region and the more complete and uniform coverage of the TiO(2) NRs by the pep-PDA film. This study not only proposes a novel and highly efficient way to load PDA on TiO(2) NRs but also provides useful insights for the loading of other photocatalysts on organic semiconductors to degrade organic dyes.
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spelling pubmed-90553242022-05-04 Photocatalytic degradation of methylene blue by a cocatalytic PDA/TiO(2) electrode produced by photoelectric polymerization Guo, Zehui Wang, Guoqing Fu, Haiqing Wang, Peiqing Liao, Jianhe Wang, Aimin RSC Adv Chemistry This study reports a new method for photocatalysts to degrade organic dyes on organic semiconductors. A novel strategy is reported to form TiO(2) nanorod (NR)/polydopamine (PDA) electrodes with a photoelectric polymerization strategy for PDA (pep-PDA) to produce cocatalytic electrodes. Amperometric i–t curves and UV-vis diffuse reflectance spectra were recorded and showed that compared with traditional self-polymerization (sp-PDA) and electropolymerization (ep-PDA), TiO(2) NR/pep-PDA exhibited an enhanced photocatalytic activity under visible light. As expected, TiO(2) NR/pep-PDA showed a significant improvement for the degradation of methylene blue (MB) under visible light, which can be attributed to the strong absorption of PDA in the visible light region and the more complete and uniform coverage of the TiO(2) NRs by the pep-PDA film. This study not only proposes a novel and highly efficient way to load PDA on TiO(2) NRs but also provides useful insights for the loading of other photocatalysts on organic semiconductors to degrade organic dyes. The Royal Society of Chemistry 2020-07-10 /pmc/articles/PMC9055324/ /pubmed/35519738 http://dx.doi.org/10.1039/d0ra02076a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Guo, Zehui
Wang, Guoqing
Fu, Haiqing
Wang, Peiqing
Liao, Jianhe
Wang, Aimin
Photocatalytic degradation of methylene blue by a cocatalytic PDA/TiO(2) electrode produced by photoelectric polymerization
title Photocatalytic degradation of methylene blue by a cocatalytic PDA/TiO(2) electrode produced by photoelectric polymerization
title_full Photocatalytic degradation of methylene blue by a cocatalytic PDA/TiO(2) electrode produced by photoelectric polymerization
title_fullStr Photocatalytic degradation of methylene blue by a cocatalytic PDA/TiO(2) electrode produced by photoelectric polymerization
title_full_unstemmed Photocatalytic degradation of methylene blue by a cocatalytic PDA/TiO(2) electrode produced by photoelectric polymerization
title_short Photocatalytic degradation of methylene blue by a cocatalytic PDA/TiO(2) electrode produced by photoelectric polymerization
title_sort photocatalytic degradation of methylene blue by a cocatalytic pda/tio(2) electrode produced by photoelectric polymerization
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9055324/
https://www.ncbi.nlm.nih.gov/pubmed/35519738
http://dx.doi.org/10.1039/d0ra02076a
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