Facile construction of a sulfur vacancy defect-decorated CoSx@In2S3 core/shell heterojunction for efficient visible-light-driven photocatalytic hydrogen evolution

The surface V S in CoS x @In 2 S 3 enhances the charge-separation efficiency of In 2 S 3 through rearranging the electrons of the In 2 S 3 basal plane, in addition to improving the electron-transfer efficiency.