Acta Phys. -Chim. Sin. ›› 2016, Vol. 32 ›› Issue (6): 1519-1526.doi: 10.3866/PKU.WHXB201603242

• ARTICLE • Previous Articles     Next Articles

Preparation of Bismuth Phosphate Photocatalyst with High Dispersion by Refluxing Method

Kai-Jian ZHU1,Wen-Qing YAO2,Yong-Fa ZHU2,1,*()   

  1. 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:2016-01-05 Published:2016-06-03
  • Contact: Yong-Fa ZHU E-mail:zhuyf@tsinghua.edu.cn
  • Supported by:
    The project was supported by the National Key Basic Research Program of China(9732013CB632403);National Natural Science Foundation of China(21437003)

Abstract:

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.

Key words: Refluxing, Bismuth phosphate, Photocatalysis, Dispersibility

MSC2000: 

  • O643