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Bi(1−x)La(x)CuSeO as New Tunable Full Solar Light Active Photocatalysts

Photocatalysis is attracting enormous interest driven by the great promise of addressing current energy and environmental crises by converting solar light directly into chemical energy. However, efficiently harvesting solar energy for photocatalysis remains a pressing challenge, and the charge kinet...

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Autores principales: Wang, Huanchun, Li, Shun, Liu, Yaochun, Ding, Jinxuan, Lin, Yuan-Hua, Xu, Haomin, Xu, Ben, Nan, Ce-Wen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4837348/
https://www.ncbi.nlm.nih.gov/pubmed/27095046
http://dx.doi.org/10.1038/srep24620
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author Wang, Huanchun
Li, Shun
Liu, Yaochun
Ding, Jinxuan
Lin, Yuan-Hua
Xu, Haomin
Xu, Ben
Nan, Ce-Wen
author_facet Wang, Huanchun
Li, Shun
Liu, Yaochun
Ding, Jinxuan
Lin, Yuan-Hua
Xu, Haomin
Xu, Ben
Nan, Ce-Wen
author_sort Wang, Huanchun
collection PubMed
description Photocatalysis is attracting enormous interest driven by the great promise of addressing current energy and environmental crises by converting solar light directly into chemical energy. However, efficiently harvesting solar energy for photocatalysis remains a pressing challenge, and the charge kinetics and mechanism of the photocatalytic process is far from being well understood. Here we report a new full solar spectrum driven photocatalyst in the system of a layered oxyselenide BiCuSeO with good photocatalytic activity for degradation of organic pollutants and chemical stability under light irradiation, and the photocatalytic performance of BiCuSeO can be further improved by band gap engineering with introduction of La. Our measurements and density-functional-theory calculations reveal that the effective mass and mobility of the carriers in BiCuSeO can be tuned by the La-doping, which are responsible for the tunable photocatalytic activity. Our findings may offer new perspectives for understanding the mechanism of photocatalysis through modulating the charge mobility and the effective mass of carriers and provide a guidance for designing efficient photocatalyts.
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spelling pubmed-48373482016-04-27 Bi(1−x)La(x)CuSeO as New Tunable Full Solar Light Active Photocatalysts Wang, Huanchun Li, Shun Liu, Yaochun Ding, Jinxuan Lin, Yuan-Hua Xu, Haomin Xu, Ben Nan, Ce-Wen Sci Rep Article Photocatalysis is attracting enormous interest driven by the great promise of addressing current energy and environmental crises by converting solar light directly into chemical energy. However, efficiently harvesting solar energy for photocatalysis remains a pressing challenge, and the charge kinetics and mechanism of the photocatalytic process is far from being well understood. Here we report a new full solar spectrum driven photocatalyst in the system of a layered oxyselenide BiCuSeO with good photocatalytic activity for degradation of organic pollutants and chemical stability under light irradiation, and the photocatalytic performance of BiCuSeO can be further improved by band gap engineering with introduction of La. Our measurements and density-functional-theory calculations reveal that the effective mass and mobility of the carriers in BiCuSeO can be tuned by the La-doping, which are responsible for the tunable photocatalytic activity. Our findings may offer new perspectives for understanding the mechanism of photocatalysis through modulating the charge mobility and the effective mass of carriers and provide a guidance for designing efficient photocatalyts. Nature Publishing Group 2016-04-20 /pmc/articles/PMC4837348/ /pubmed/27095046 http://dx.doi.org/10.1038/srep24620 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Wang, Huanchun
Li, Shun
Liu, Yaochun
Ding, Jinxuan
Lin, Yuan-Hua
Xu, Haomin
Xu, Ben
Nan, Ce-Wen
Bi(1−x)La(x)CuSeO as New Tunable Full Solar Light Active Photocatalysts
title Bi(1−x)La(x)CuSeO as New Tunable Full Solar Light Active Photocatalysts
title_full Bi(1−x)La(x)CuSeO as New Tunable Full Solar Light Active Photocatalysts
title_fullStr Bi(1−x)La(x)CuSeO as New Tunable Full Solar Light Active Photocatalysts
title_full_unstemmed Bi(1−x)La(x)CuSeO as New Tunable Full Solar Light Active Photocatalysts
title_short Bi(1−x)La(x)CuSeO as New Tunable Full Solar Light Active Photocatalysts
title_sort bi(1−x)la(x)cuseo as new tunable full solar light active photocatalysts
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4837348/
https://www.ncbi.nlm.nih.gov/pubmed/27095046
http://dx.doi.org/10.1038/srep24620
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