“…The inter-electron transfer between CdS and MoS 2 and the hydrogen activation property of MoS 2 are reported to be responsible for the increased activity. Several composites of CdS like CdS-graphene [6], CdS-ZnO [7,8], CdS-CdO [9,10], and CdS-ZrO 2 [11] show better photocatalytic activity than pure CdS. The increased activity has been attributed to the increased surface area and increased lifetime of the photogenerated charge carriers in these composite systems.…”