Recent advances in the photocatalytic CO2 reduction over semiconductors

This perspective gives an overview of recent developments in heterogeneous photocatalytic CO2 reduction for C1/C2 fuels production over semiconductors, which has been known for several decades as a potential feasible means to store intermittent solar energy and to recycle CO2. In recent years, significant efforts have been made in order to further improve the photoactivity and the selectivity through developing novel photocatalysts and its CO2 photoreduction reaction systems, which would be of great interest in the field of solar conversion and CO2 resource utilization.