Enhanced extrinsic absorption promotes the visible light photocatalytic activity of wide band-gap (BiO)2CO3 hierarchical structure

Ting Xiong; Fan Dong; Zhongbiao Wu

doi:10.1039/C4RA10786A

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Enhanced extrinsic absorption promotes the visible light photocatalytic activity of wide band-gap (BiO)₂CO₃ hierarchical structure†

Ting Xiong,^a Fan Dong*^a and Zhongbiao Wu*^b

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* Corresponding authors

^a Chongqing Key Laboratory of Catalysis and Functional Organic Molecules, College of Environmental and Biological Engineering, Chongqing Technology and Business University, Chongqing, China
E-mail: dfctbu@126.com, zbwu@zju.edu.cn
Fax: +86-23-62769785-605
Tel: +86-23-62769785-605

^b Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, PR China

Abstract

(BiO)₂CO₃ hierarchical microspheres and (BiO)₂CO₃ nanoparticles with wide band-gaps were fabricated by a simple hydrothermal method. The former showed higher visible light photocatalytic activity towards the removal of NO than the latter due to the enhanced extrinsic absorption benefiting from the strong light reflecting and scattering effects. The extrinsic absorption over (BiO)₂CO₃ hierarchical microspheres can induce the production of holes and electrons with visible light, subsequently generating active species to participate in photocatalytic reactions.

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Article information

DOI: https://doi.org/10.1039/C4RA10786A
Article type: Communication
Submitted: 19 Sep 2014
Accepted: 16 Oct 2014
First published: 16 Oct 2014

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RSC Adv., 2014,4, 56307-56312

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Enhanced extrinsic absorption promotes the visible light photocatalytic activity of wide band-gap (BiO)₂CO₃ hierarchical structure

T. Xiong, F. Dong and Z. Wu, RSC Adv., 2014, 4, 56307 DOI: 10.1039/C4RA10786A

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