Recent advances in metal halide perovskite photocatalysts: Properties, synthesis and applications

As a class of new emerged semiconductors, MHPs exhibit many excellent photoelectronic properties, which are superior to most conventional semiconductor nanocrystals (NCs). Particularly, MHPs have received extensive attention and brought new opportunities for the development of photocatalysis. Over the past few years, numerous efforts have been made to design and prepare MHP-based materials for a wide range of applications in photocatalysis, ranging from photocatalytic H2 generation, photocatalytic CO2 reduction, photocatalytic organic synthesis and pollutant degradation. In this review, recent advances in the development of MHP-based materials are summarized from the standpoint of photocatalysis. A brief outlook of this field has been proposed to point out some important challenges and possible solutions. This review suggests that the new family of MHP photocatalysts provide a new paradigm in efficient artificial photosynthesis.