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Crystals 2016, 6(7), 81; doi:10.3390/cryst6070081

A Novel, Simple and Green Way to Fabricate BiVO4 with Excellent Photocatalytic Activity and Its Methylene Blue Decomposition Mechanism

1
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
2
College of Chemistry and Materials Science, Huaibei Normal University, 100 Dongshan Road, Anhui, Huaibei 235000, China
*
Author to whom correspondence should be addressed.
Academic Editor: Helmut Cölfen
Received: 15 June 2016 / Revised: 5 July 2016 / Accepted: 7 July 2016 / Published: 20 July 2016
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Abstract

BiVO4 photocatalysts were synthesized via a facile surfactant-free method with heat treatment. The heat treatment temperatures influenced the crystal structures and morphologies. The photocatalytic performance is associated with its crystallinity, Brunauer–Emmett–Teller (BET) specific surface area, and band gap energy. The BiVO4 photocatalyst prepared by heat treatment at 700 °C showed the highest photocatalytic activity, promoting 100% degradation of methylene blue (MB) in 60 min under visible-light irradiation. Recycling experiments results indicated that the BiVO4 photocatalysts have excellent photo-stability, and a possible mechanism for the photocatalytic process was proposed by examining the effects of the active species involved in MB degradation. This work could provide new insights into the fabrication of highly efficient and stable BiVO4 photocatalysts for dye degradation. View Full-Text
Keywords: BiVO4; crystal structure; photocatalytic; methylene blue; decomposition mechanism BiVO4; crystal structure; photocatalytic; methylene blue; decomposition mechanism
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Guo, M.; He, Q.; Wang, A.; Wang, W.; Fu, Z. A Novel, Simple and Green Way to Fabricate BiVO4 with Excellent Photocatalytic Activity and Its Methylene Blue Decomposition Mechanism. Crystals 2016, 6, 81.

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