An efficient cocatalyst of defect-decorated MoS2 ultrathin nanoplates for the promotion of photocatalytic hydrogen evolution over CdS nanocrystal

The defect degree of MoS2 ultrathin nanoplates are tailored easily via a facile one-pot hydrothermal method. The defect-rich MoS2 ultrathin nanoplates show excellent promotion of photocatalytic hydrogen evolution over CdS; 5.4 times as much as that of the CdS/Pt (1%), which arises from the dual-functional effect of the unique defect-decorated MoS2 ultrathin nanoplates.