Enhanced photocatalytic CO2-reduction activity to form CO and CH4 on S-scheme heterostructured ZnFe2O4/Bi2MoO6 photocatalyst

作者：Zhou, Yipeng; Jiao, Wenyu; Xie, Yu^*; He, Fan; Ling, Yun; Yang, Qi; Zhao, Jinsheng^*; Ye, Hao; Hou, Yang^*

来源：Journal of Colloid and Interface Science, 2022, 608: 2213-2223.

DOI：10.1016/j.jcis.2021.10.053

• ZnFe2O4/Bi2MoO6
• CO2 reduction
• Photocatalysis
• Heterojunction

A novel ZnFe2O4/Bi2MoO6 heterojunction photocatalyst was synthesized by a facile solvothermal route. The incorporation of a narrow bandgap ZnFe2O4 photocatalyst can efficiently improve the range of light response and light absorption capacity of the Bi2MoO6 via the formation of a hybrid structure at the interface. The formed hybrid interface facilitates the separation efficiency of photo-generated carriers at ZnFe2O4/Bi2MoO6 heterojunction significantly. The experimental results confirm that ZnFe2O4/Bi2MoO6-20% heterojunction showed the highest photocatalytic efficiency for CO2 reduction. Specifically, the total product yield of 47.1 mu mol g(-1) under 5 h simulated sunlight irradiation is measured in the counterparts of pure ZnFe2O4 (14.79 mu mol g(-1)) and pure Bi2MoO6 (19.01 mu mol g(-1)). Indeed, the formation of ZnFe2O4/Bi2MoO6 heterojunction improved the photocatalytic efficiency for CO2 reduction.

• 单位
  南昌航空大学; y; 浙江大学; 江西理工大学