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Citation: PENG Yang, HOU Lin-Rui, YUAN Chang-Zhou. Preparation and Photocatalytic Property of BiVO₄ Micro-rods with Brick Shape[J]. Chinese Journal of Applied Chemistry, ;2008, 25(4): 485-488. shu

Preparation and Photocatalytic Property of BiVO₄ Micro-rods with Brick Shape

1.
Institute of Applied Chemistry, Xinjiang University, Urumqi 830046

Corresponding author: PENG Yang,
Received Date: 27 April 2007
Available Online: 8 July 2007

BiVO₄ micro-rods with brick shape were successfully synthesized in the system of polyglycol/cyclohexane/water emulsion under ultrasonic condition.The monoclinic crystal structure of the photocatalyst was determined by means of XRD,SEM and TEM,indicating that the synthesized photocatalyst was micro-rods with brick shape.Furthermore,the synthesized BiVO₄ micro-rods were made of nano particles with a size of 30~50 nm.The photo absorption property showed that the band gap of the photocatalyst was ca.2.31 eV,and the BiVO₄ microrods had strong photo-absorption property in both UV and visible regions.The formation mechanism of the BiVO₄ micro-rods was also discussed tentatively.The photocatalytic activity of the BiVO₄ micro-rods was tested in methylene blue solution under sunlight illumination.The synthesized BiVO₄ micro-rods with brick shape had high photocatalytic activity because of the obviously better absorption property and the mixing valance band of O_2p and Bi_6s,and methylene blue was near completely decomposed within just 60 min.
- BiVO₄,
- micro-rods with brick shape,
- emulsion,
- photocatalysis,
- methylene blue
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Preparation and Photocatalytic Property of BiVO4 Micro-rods with Brick Shape

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通讯作者: 陈斌, bchen63@163.com

Preparation and Photocatalytic Property of BiVO₄ Micro-rods with Brick Shape