Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts

A novel graphene oxide/BiOCl (GO/BiOCl) nanocomposite film was prepared via a spread coating method. In visible-light photocatalytically degrading Rhodamine B (RhB) experiments, 2 wt% GO/BiOCl could degrade 99% of RhB within 1.5 h and the rate constant was 12.2 times higher than that of pure BiOCl....

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Detalles Bibliográficos
Autores principales: Lin, Weitian, Yu, Xiang, Zhu, Yi, Zhang, Yuanming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2018
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6066524/
https://www.ncbi.nlm.nih.gov/pubmed/30137741
http://dx.doi.org/10.3389/fchem.2018.00274
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author Lin, Weitian
Yu, Xiang
Zhu, Yi
Zhang, Yuanming
author_facet Lin, Weitian
Yu, Xiang
Zhu, Yi
Zhang, Yuanming
author_sort Lin, Weitian
collection PubMed
description A novel graphene oxide/BiOCl (GO/BiOCl) nanocomposite film was prepared via a spread coating method. In visible-light photocatalytically degrading Rhodamine B (RhB) experiments, 2 wt% GO/BiOCl could degrade 99% of RhB within 1.5 h and the rate constant was 12.2 times higher than that of pure BiOCl. The degradation efficiency still kept at 80% even after 4 recycles, evidencing the relatively good recyclability. The enhancement was attributed to the improvement of visible light adsorption and charge separation. Holes and superoxide radicals· [Formula: see text] played a major role as reactive species. The values of conduction band and valence band for GO and BiOCl were calculated and a new photocatalytic mechanism of GO/BiOCl nanocomposite was proposed.
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spelling pubmed-60665242018-08-07 Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts Lin, Weitian Yu, Xiang Zhu, Yi Zhang, Yuanming Front Chem Chemistry A novel graphene oxide/BiOCl (GO/BiOCl) nanocomposite film was prepared via a spread coating method. In visible-light photocatalytically degrading Rhodamine B (RhB) experiments, 2 wt% GO/BiOCl could degrade 99% of RhB within 1.5 h and the rate constant was 12.2 times higher than that of pure BiOCl. The degradation efficiency still kept at 80% even after 4 recycles, evidencing the relatively good recyclability. The enhancement was attributed to the improvement of visible light adsorption and charge separation. Holes and superoxide radicals· [Formula: see text] played a major role as reactive species. The values of conduction band and valence band for GO and BiOCl were calculated and a new photocatalytic mechanism of GO/BiOCl nanocomposite was proposed. Frontiers Media S.A. 2018-07-24 /pmc/articles/PMC6066524/ /pubmed/30137741 http://dx.doi.org/10.3389/fchem.2018.00274 Text en Copyright © 2018 Lin, Yu, Zhu and Zhang. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Lin, Weitian
Yu, Xiang
Zhu, Yi
Zhang, Yuanming
Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts
title Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts
title_full Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts
title_fullStr Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts
title_full_unstemmed Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts
title_short Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts
title_sort graphene oxide/biocl nanocomposite films as efficient visible light photocatalysts
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6066524/
https://www.ncbi.nlm.nih.gov/pubmed/30137741
http://dx.doi.org/10.3389/fchem.2018.00274
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AT zhuyi grapheneoxidebioclnanocompositefilmsasefficientvisiblelightphotocatalysts
AT zhangyuanming grapheneoxidebioclnanocompositefilmsasefficientvisiblelightphotocatalysts

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