23 - Development of metal sulfide–based photocatalysts for hydrogen evolution under visible light

Abstract

Metal sulfide–based photocatalysts have been investigated intensively over the past two decades. This class of materials offers tunable composition and morphological diversity, which lead to adjustable band structure for visible light absorption, heterostructure for enhanced charge separation and transportation, and active site for surface reactions. In this chapter, the progress made in our laboratory on developing metal sulfide–based photocatalysts for H2 evolution under visible light irradiation is reviewed. Our work has been focused on the development of CdS and ZnxCd1-xS systems as the base semiconductor, and NiS and MoS3 as the cocatalysts. Various strategies including doping, forming composites, surface engineering, and support effect have been adopted to achieve high photocatalytic efficiency.