Enhancement of photocatalytic activity of Bi2WO6 hybridized with graphite-like C3N4

Yajun Wang; Xiaojuan Bai; Chengsi Pan; Jun He; Yongfa Zhu

doi:10.1039/C2JM16873A

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Journal of Materials Chemistry

Issue 23, 2012

Journal of Materials Chemistry was published between 1991 and 2012. From issue 1, 2013, it was replaced by three new journals: Journal of Materials Chemistry A, B and C

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Paper

Enhancement of photocatalytic activity of Bi₂WO₆ hybridized with graphite-like C₃N₄

Yajun Wang,^a^b Xiaojuan Bai,^a Chengsi Pan,^a Jun He^b and Yongfa Zhu*^a

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Corresponding authors

Department of Chemistry, Tsinghua University, Beijing, China
E-mail: zhuyf@mail.tsinghua.edu.cn ;
Fax: +86-10-62787601 ;
Tel: +86-10-62787601

National Center for Nanoscience and Technology, 11 Zhongguancun Beiyitiao, Beijing 100190, China

J. Mater. Chem., 2012,22, 11568-11573

DOI: 10.1039/C2JM16873A
Received 28 Dec 2011, Accepted 03 Apr 2012
First published online 03 May 2012

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Abstract
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Bi₂WO₆ photocatalyst was hybridized by graphite-like C₃N₄via facile chemisorption. After hybridization with C₃N₄, the photocatalytic activity of Bi₂WO₆ was obviously enhanced. A C₃N₄/Bi₂WO₆ photocatalyst hybridized with monolayer C₃N₄ exhibited the highest photocatalytic activity which was 68.9% higher than that of pure Bi₂WO₆. The enhanced photocatalytic activity of the C₃N₄/Bi₂WO₆ photocatalysts could be attributed to the synergetic effect between C₃N₄ and Bi₂WO₆. The photogenerated holes on the valence band of Bi₂WO₆ could transfer to the highest occupied molecular orbital of C₃N₄via the well developed interface, causing rapid photoinduced charge separation and enhancing the photocatalytic activity.