A brief review on metal halide perovskite photocatalysts: History, applications and prospects

Today's society pays increasing attention to the issues of sustainable energy development and environmental protection. Photocatalytic technology based on semiconductor materials is of great importance to meet these challenges. Metal halide perovskite (MHP) materials have been developed rapidly in the field of photovoltaics and light-emitting diodes. In recent years, such materials have also attracted increasing attention in the field of photocatalysis. In this review, we introduce in detail the recent progress of MHP materials in the fields of photocatalytic CO2 reduction, pollutant degradation, photocatalytic chemical reaction and photocatalytic hydrogen evolution. In addition, some solutions are proposed to solve the problems of poor stability and weak photocatalytic performance of MHP photocatalysts. We hope that this review can provide ideas for researchers to further promote the research in the field of MHP-based photocatalysis.