Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 173, Issue -, Pages 175-180Publisher
ELSEVIER
DOI: 10.1016/j.micromeso.2013.02.029
Keywords
BiVO4; Ordered structure; Visible light; Photocatalysis
Categories
Funding
- National Science Fund China [21107007]
- program for Liaoning excellent talents in university [LJQ2012049]
- Program for Key Science AMP
- Technology Platform in Universities of Liaoning Province
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Highly ordered mesoporous BiVO4 was prepared by nanocasting method using mesoporous silica as a template. The degree of ordering of mesoporous BiVO4 could be controlled by repeating filling/conversion process. And highly ordered mesoporous BiVO4 had been got after repeating filling/conversion process for three times. Compared with BiVO4, photocatalytic activity of mesoporous BiVO4 was enhanced under visible light. This enhancement could be attributed to the mesoporous structure, which elevated the absorption ability, increased the separation efficiency of photo-generated carriers, and improved surface reaction sites for consumption of photo-generated carriers. Meanwhile, the proposed formation mechanism of ordered mesoporous BiVO4 was put forward. (c) 2013 Elsevier Inc. All rights reserved.
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