Mixed Metal Sulfides for the Application of Photocatalytic Energy Conversion

Benefiting from suitable band energy and outstanding redox reversibility, metal sulfides have drawn extensive research attention in photocatalysis, especially in energy conversion. This review overviews the progress of metal sulfide semiconductors in the recent five years for photocatalytic energy conversion. First, the modifications on morphologies and structures of metal sulfides are introduced. Then, the applications of metal sulfides in photocatalytic energy conversion are outlined, which include H2 production, CO2 reduction, and N2 fixation. Especially, the correlations between modification and photocatalytic activity are elaborated. Finally, the challenges and perspectives of metal sulfides in energy conversion are provided.