Crystal Transformation and Visible light Driven Photocatalytic Activities of Vanadium doped Bismuth Oxide

YIN Lifeng; Bo Fusheng; Dai Yunrong

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Crystal Transformation and Visible light Driven Photocatalytic Activities of Vanadium doped Bismuth Oxide

YIN Lifeng 1 * #,Bo Fusheng 2,Dai Yunrong 3

1.School of Environment, Beijing Normal University, Beijing, 100875

2.Environmental Protection Agency in Sanke city

3.State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Department of Urban Water Environmental Research, Beijing 100012

*Correspondence author

#Submitted by

Subject:

Funding: National Natural Science Foundation of China（No.21207004）, special funds of State Key Joint Laboratory of Environment Simulation and Pollution Control （No.11Y06ESPCN）, National Basic Research Program of China（973 project）（No.2010CB429003）, Specialized Research Fund for the Doctoral Program of Higher Education （No.No. 20120003120027）

Opened online:23 October 2013

Accepted by: none

Citation: YIN Lifeng,Bo Fusheng,Dai Yunrong.Crystal Transformation and Visible light Driven Photocatalytic Activities of Vanadium doped Bismuth Oxide[OL]. [23 October 2013] http://en.paper.edu.cn/en_releasepaper/content/4564373

The doping of bismuth oxide with vanadium yielded a series of photocatalysts with visible light responsive ability, including bismuth subcarbonate (Bi2O2CO3), monoclinic bismuth vanadate (BiVO4), bismuth oxides, cubic bismuth vanadate (Bi12.38V0.62O20.12) and their co-crystalline under the different anneal temperatures. It is suggested that vanadium doping in the lattice of bismuth oxide results in the crystalline transformation. Among them, the mixture of cubic bismuth oxide and bismuth vanadate presented the highest degradation efficiency (98.5%) for 4-chlorophenol, a widespread environmental pollutant, under visible light and sunlight irradiation. The degradation mechanism was ascribed to the photocatalytic reduction by the photo-generated electron.

Keywords:Industrial catalysis; crystal transformation; photocatalysis; visible light; vanadium doping; bismuth oxide

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