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Citation: ZHU Kai-Jian, YAO Wen-Qing, ZHU Yong-Fa. Preparation of Bismuth Phosphate Photocatalyst with High Dispersion by Refluxing Method[J]. Acta Physico-Chimica Sinica, ;2016, 32(6): 1519-1526. doi: 10.3866/PKU.WHXB201603242 shu

Preparation of Bismuth Phosphate Photocatalyst with High Dispersion by Refluxing Method

1.
Institute of Advanced Materials, Nanjing Tech University, Nanjing 210009, P. R. China;
2.
Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China

Received Date: 5 January 2016
Revised Date: 24 March 2016

Fund Project: The project was supported by the National Key Basic Research Program of China (973)(2013CB632403) and National Natural Science Foundation of China (21437003).

BiPO₄ photocatalysts were synthesized by refluxing in ethylene glycol, and the effects of reaction temperature and reaction time on the BiPO₄ crystal structure, morphology, and properties were investigated. The crystal form of BiPO₄ changed from hexagonal to monoclinic on refluxing in the solvent. The produced BiPO₄ photocatalysts showed good activities in photodegradation of methylene blue, and the activity could be adjusted by changing the refluxing temperature and time. BiPO₄ showed the best catalytic properties when the refluxing time was 2 h at 130 ℃; the kinetic constant was 0.161 min^-1. The BiPO₄ dispersibility was still high after standing for 2 d, because of the introduction of surface hydroxy groups by refluxing in ethylene glycol.
- Refluxing,
- Bismuth phosphate,
- Photocatalysis,
- Dispersibility
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