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2D/2D Biochar/Bi(2)WO(6) Hybrid Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities for Organic Pollutants Degradation
[Image: see text] In this work, a novel two-dimensional/two-dimensional (2D/2D) hybrid photocatalyst consisting of Bi(2)WO(6) (BWO) nanosheets and cotton fibers biochar (CFB) nanosheets was successfully prepared via a facile hydrothermal process. The as-prepared photocatalysts were characterized by...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10398710/ https://www.ncbi.nlm.nih.gov/pubmed/37546663 http://dx.doi.org/10.1021/acsomega.3c01591 |
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author | Li, Xiaolin Qu, Yanan Xu, Junjie Liang, Junhui Chen, Huayu Chen, Da Bai, Liqun |
author_facet | Li, Xiaolin Qu, Yanan Xu, Junjie Liang, Junhui Chen, Huayu Chen, Da Bai, Liqun |
author_sort | Li, Xiaolin |
collection | PubMed |
description | [Image: see text] In this work, a novel two-dimensional/two-dimensional (2D/2D) hybrid photocatalyst consisting of Bi(2)WO(6) (BWO) nanosheets and cotton fibers biochar (CFB) nanosheets was successfully prepared via a facile hydrothermal process. The as-prepared photocatalysts were characterized by a variety of techniques, including X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and UV–vis diffuse reflectance spectroscopy. It was revealed that amorphous CFB nanosheets were uniformly immobilized on the surface of crystalline BWO nanosheets, and an intimate contact between CFB and BWO was constructed. The photocatalytic activities of the prepared BWO and CFB–BWO photocatalysts were evaluated by photocatalytic degradation of rhodamine B (RhB) and tetracycline hydrochloride (TC-HCl) in aqueous solutions under visible-light irradiation. Compared to the pristine BWO, the CFB–BWO composite photocatalysts exhibited significant enhancement in photocatalytic activities. Among all CFB–BWO samples, the 9CFB–BWO sample with the CFB mass ratio of 9% exhibited optimal photocatalytic activities for RhB or TC-HCl degradation, which was ca. 1.8 times or 2.4 times that of the pristine BWO, respectively. The improvement in photocatalytic activities of the CFB–BWO photocatalysts could be ascribed to the enhanced migration and separation of photogenerated charge carriers due to the formation of a 2D/2D interfacial heterostructure between CFB and BWO. Meanwhile, the possible mechanism of CFB–BWO for enhanced photocatalytic performance was also discussed. This work may provide a new approach to designing and developing novel BWO-based photocatalysts for the highly efficient removal of organic pollutants. |
format | Online Article Text |
id | pubmed-10398710 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-103987102023-08-04 2D/2D Biochar/Bi(2)WO(6) Hybrid Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities for Organic Pollutants Degradation Li, Xiaolin Qu, Yanan Xu, Junjie Liang, Junhui Chen, Huayu Chen, Da Bai, Liqun ACS Omega [Image: see text] In this work, a novel two-dimensional/two-dimensional (2D/2D) hybrid photocatalyst consisting of Bi(2)WO(6) (BWO) nanosheets and cotton fibers biochar (CFB) nanosheets was successfully prepared via a facile hydrothermal process. The as-prepared photocatalysts were characterized by a variety of techniques, including X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and UV–vis diffuse reflectance spectroscopy. It was revealed that amorphous CFB nanosheets were uniformly immobilized on the surface of crystalline BWO nanosheets, and an intimate contact between CFB and BWO was constructed. The photocatalytic activities of the prepared BWO and CFB–BWO photocatalysts were evaluated by photocatalytic degradation of rhodamine B (RhB) and tetracycline hydrochloride (TC-HCl) in aqueous solutions under visible-light irradiation. Compared to the pristine BWO, the CFB–BWO composite photocatalysts exhibited significant enhancement in photocatalytic activities. Among all CFB–BWO samples, the 9CFB–BWO sample with the CFB mass ratio of 9% exhibited optimal photocatalytic activities for RhB or TC-HCl degradation, which was ca. 1.8 times or 2.4 times that of the pristine BWO, respectively. The improvement in photocatalytic activities of the CFB–BWO photocatalysts could be ascribed to the enhanced migration and separation of photogenerated charge carriers due to the formation of a 2D/2D interfacial heterostructure between CFB and BWO. Meanwhile, the possible mechanism of CFB–BWO for enhanced photocatalytic performance was also discussed. This work may provide a new approach to designing and developing novel BWO-based photocatalysts for the highly efficient removal of organic pollutants. American Chemical Society 2023-07-21 /pmc/articles/PMC10398710/ /pubmed/37546663 http://dx.doi.org/10.1021/acsomega.3c01591 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Li, Xiaolin Qu, Yanan Xu, Junjie Liang, Junhui Chen, Huayu Chen, Da Bai, Liqun 2D/2D Biochar/Bi(2)WO(6) Hybrid Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities for Organic Pollutants Degradation |
title | 2D/2D Biochar/Bi(2)WO(6) Hybrid
Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities
for Organic Pollutants Degradation |
title_full | 2D/2D Biochar/Bi(2)WO(6) Hybrid
Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities
for Organic Pollutants Degradation |
title_fullStr | 2D/2D Biochar/Bi(2)WO(6) Hybrid
Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities
for Organic Pollutants Degradation |
title_full_unstemmed | 2D/2D Biochar/Bi(2)WO(6) Hybrid
Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities
for Organic Pollutants Degradation |
title_short | 2D/2D Biochar/Bi(2)WO(6) Hybrid
Nanosheets with Enhanced Visible-Light-Driven Photocatalytic Activities
for Organic Pollutants Degradation |
title_sort | 2d/2d biochar/bi(2)wo(6) hybrid
nanosheets with enhanced visible-light-driven photocatalytic activities
for organic pollutants degradation |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10398710/ https://www.ncbi.nlm.nih.gov/pubmed/37546663 http://dx.doi.org/10.1021/acsomega.3c01591 |
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