Metal Sulfide Semiconductor Photocatalysts

Photocatalysis has aroused great interest as a promising technology to tackle global energy crisis and environment issues, which are essential for the sustainable development of society. Metal sulfide semiconductors have been investigated for such applications owing to their fascinating merits, including efficient visible-light harvesting ability, suitable band-edge positions, and high carrier mobility. To take full advantage of these characteristics and improve existing drawbacks like severe photocorrosion and fast photogenerated-charge carrier recombination, various metal sulfide-based nanostructure photocatalysts have been developed. This chapter discusses significant progresses in the development of CdS-based photocatalysts, In 2 S 3 -based photocatalysts, SnS 2 -based photocatalysts, Cu 2 S-based photocatalysts, and some ternary metallic sulfide-based photocatalysts, mainly focusing on synthesis methods, morphology control, optical and physicochemical properties, heterojunction construction, and their potential applications in photocatalysis. Finally, a brief conclusion and future outlooks for metal sulfide semiconductor photocatalyst are presented.