Construction of Three-Dimensional In-Zn-Cd-S Composite Materials and Their Visible-Light Catalytic Performance

作者：Gong, Xiaoyu; Li, Zhiqiang; Yu, Minghui; Yu, Hao; Wang, Shuang; Shao, Hongyu; Cheng, Yuye; Dou, Minghao; Li, Danni; Li, Shenjie^*; Chen, Yanyan^*

来源：ChemistrySelect, 2022, 7(28): e202200705.

DOI：10.1002/slct.202200705

• Photocatalysis
• hydrothermal synthesis
• composite materials
• semiconductors
• nanoparticles

In this paper, a simple template-free one-step hydrothermal method was used to construct three-dimensional In-Zn-Cd-S composite materials. By changing the ratio of In3+/(Zn2++Cd2+) and controlling the band gap of semiconductor, a novel efficient and stable photocatalyst was designed. In-Zn-Cd-S composite showed good adsorption capacity and photocatalytic activity. When In3+/(Zn2++Cd2+) was equal to 1/5, the photocatalytic activity of the composite was the highest. The degradation rate of RhB could reach 92.6 % within 5 min, and 97.6 % after 15 min. The results of cyclic experiments show that the IZCS-4 catalyst has good cyclic performance and structural stability. According to the free radical capture experiment, the main effect of IZCS-4 on the photodegradation of organic pollutants is H+ and O-center dot(2-). The enhanced photocatalytic activity of the alloy semiconductor material is mainly because it can effectively separate the photogenerated carriers and successfully inhibit the photocorrosion of In2S3 monomer.