TiO2/BiYO3 composites for enhanced photocatalytic hydrogen production

作者：Qin, Zuzeng; Chen, Liuyun; Ma, Rujun; Tomovska, Radmila; Luo, Xuan; Xie, Xinling; Su, Tongming; Ji, Hongbing

来源：Journal of Alloys and Compounds, 2020, 836: 155428.

DOI：10.1016/j.jallcom.2020.155428

• Photocatalysis
• Hydrogen
• Water splitting
• TiO2
• BiYO3

Photocatalytic water splitting into hydrogen was regarded as one of the key solutions to the energy crisis and environmental pollution. In this work, TiO2/BiYO3 photocatalysts were synthesized by an improved Sol-Gel method and their photocatalytic activity for hydrogen evolution from water splitting was investigated. The photocatalytic hydrogen evolution rate of the optimized TiO2/BiYO3 composite exhibited 10 times higher than that of TiO2 and 57 times higher than that of BiYO3, respectively. Such enhanced photocatalytic performance was due to the Type I heterostructure between the TiO2 and BiYO3, which promoted the transfer of photoinduced electrons and the separation of photogenerated charge carriers. This work demonstrates that the TiO2/BiYO3 composites are promising photocatalysts for photocatalytic hydrogen production from water.

• 单位
  中山大学; 广西大学