Tang Tao, Zhang Haoran, Wang Hexu, Dou Xiaoyu, Wen Jianfeng, Jiang Li
Key Laboratory of Low-Dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, College of Physics and Electronic Information Engineering, Guilin University of Technology, Guilin 541004, China.
School of Electronic Information and Automation, Guilin University of Aerospace Technology, Guilin 541004, China.
Molecules. 2025 Mar 22;30(7):1413. doi: 10.3390/molecules30071413.
The development of green, efficient, and reusable photocatalysts is important for pollution degradation. In recent years, CsBiI has been shown to be an effective photocatalyst. However, the rapid recombination of electrons and holes weakens the photocatalytic activity. In this work, the photogenerated electron transfer rate was promoted by ZIF-8 compositing with CsBiI, which effectively improved the pollutant degradation. After 50 min of visible light irradiation, CsBiI/ZIF-8 removed up to 98.2% of methylene blue (MB), which was 4.15 times higher than that of CsBiI alone. In addition, the CsBiI/ZIF-8 composite still exhibited high photocatalytic activity after three cycling experiments. Our research offers a simple and efficient method for enhancing the photocatalytic activity of lead-free halide perovskites.
开发绿色、高效且可重复使用的光催化剂对于污染降解至关重要。近年来，CsBiI已被证明是一种有效的光催化剂。然而，电子和空穴的快速复合削弱了光催化活性。在这项工作中，通过ZIF-8与CsBiI复合促进了光生电子转移速率，有效提高了污染物降解率。在可见光照射50分钟后，CsBiI/ZIF-8去除了高达98.2%的亚甲基蓝（MB），这比单独的CsBiI高4.15倍。此外，经过三次循环实验后，CsBiI/ZIF-8复合材料仍表现出高光催化活性。我们的研究提供了一种简单有效的方法来提高无铅卤化物钙钛矿的光催化活性。
