CdS-Based Semiconductor Photocatalysts for Hydrogen Production from Water Splitting under Solar Light

摘要

Energy crisis around the world pushes people to take advantage of renewable energy. As one kind of photosynthesis, H_2 evolution from water splitting through solar light attracts a lot of interest. Herein, this article will introduce recently published CdS-based semiconductors for photocatalytic hydrogen evolution from water splitting under solar light. The activity and stability of different CdS-based photocatalysts including CdS with different nanostructures, CdS composites with other semiconductor, polymer or high surface area materials will be described and compared. The function of deposited cocatalysts and sacrificial reagents will be also introduced for the improvement of activity and stability for CdS. The prospective trend in this research area will be proposed as well. Summarily, by means of the nanostructure change and hybridization modification, the activity of CdS for hydrogen production and the corresponding quantum efficiency can be enhanced intensely and the stability can be improved as well. We hope the review will inspire people new good ideas and thus facilitate CdS-based photocatalysts moving forward to practical application in future.