Progress on Hydrogen Production from Photocatalytic Water Splitting under Visible Light Irradiation

Recent progress and the basic principle of photocatalytic water splitting to hydrogen under visible light irradiation are briefly summarized. Three types of plans to design visible-light-driven photocatalysts are described. The doped-type,oxynitride/oxysulfide type,and solid-solution type photocatalytic systems are specifically described in this paper. In addition, the great significance and challenge to be faced by photocatalytic water splitting are also presented and several aspects of research that should be strengthened in the future are put forward.