Recently lead-free halide perovskite have shown great performances, especially in solar cell applications. On the other hand, graphitic carbon nitride g-C₃N₄ materials have been rising interest thanks to the tunable electronic structure and excellent physicochemical stability, which could serve as an excellent candidate for photocatalytic applications. In our research, we tried to overcome the low charge transportation efficiency and chemical instability anchoring a cesium/bismuth-based perovskite on g-C₃N₄ nanosheets to prepare composite photocatalyst based on nitrogen-iodine chemical bonding. Among different lead-free halide perovskite loads, the CNCSBI001 composite (g-C₃N₄:Cs₃Bi₂I₉ 10:0.1 w%) showed the better stability and an outstanding yield for photocatalytic degradation of organic compound in water solution under visible light irradiation. Hydrogen evolution test were also perform to test the activity of the synthesized compound under simulated solar light irradiation. The former study aim to provide insights on the use of halide perovskite-based Z-scheme photocatalyst for different photocatalytic applications.

最近，无铅卤化物钙钛矿已显示出出色的性能，特别是在太阳能电池应用中。另一方面，由于可调节的电子结构和出色的理化稳定性，石墨氮化碳gC ₃ N ₄材料引起了人们的极大兴趣，这些材料可以用作光催化应用的极佳候选者。在我们的研究中，我们试图克服在gC ₃ N ₄纳米片上锚定铯/铋基钙钛矿的低电荷传输效率和化学不稳定性，从而制备基于氮-碘化学键的复合光催化剂。在不同的无铅卤化物钙钛矿负载中，CNCSBI001复合材料（gC ₃ N ₄：Cs₃ Bi ₂ I ₉ 10：0.1 w％）在可见光照射下显示出较好的稳定性，并具有优异的产率，可用于水溶液中有机化合物的光催化降解。还进行了析氢试验以测试合成化合物在模拟太阳光照射下的活性。先前的研究旨在为基于卤化钙钛矿的Z型光催化剂在不同光催化应用中的使用提供见解。