Preparation, visible light-driven photocatalytic activity, and mechanism of multiphase CdS/C3N4 inorganic-organic hybrid heterojunction

As an effective method to solve the environmental crisis and energy reserve problems, visible light-driven photocatalysts have attracted widespread attention. Various semiconductor materials (such as WO 3 , CdS, g-C 3 N 4 , Ag 3 PO 4 and BiVO 4 ) have been used as photocatalysts. Therefore, in this work, CdS/C 3 N 4 composite photocatalysts were prepared by simple co-precipitation method to improve the performance of CdS, and Rhodamine B (RhB) was used to evaluate the photocatalytic activity. The results show that the composite photocatalyst containing 20% CdS has the highest photocatalytic activity. In addition, the effects of different temperatures on the properties of the samples were investigated by heat treatment. It shows that the properties of 20% CdS/C 3 N 4 (CS-20) are greatly improved after heat treatment, due to the multiphase structure.