A hierarchical sandwich-structured MoS2/SnO2/CC heterostructure for high photocatalysis performance

Abstract A sandwich-structured MoS 2 /SnO 2 /Carbon cloth (MoS 2 /SnO 2 /CC) photocatalyst was successfully synthesized through simple two-step hydrothermal method. The MoS 2 /SnO 2 /CC composite exhibited an excellent photocatalysis performance for degradation of RhB dye under visible light. A hierarchical double-layer heterostructure is formed via introducing carbon cloth substrates, which not only enhances the photocatalysis activity by accelerating electrons transfer rate and further intensifying electron-hole separation, but also is convenient for recycle. The specific photocatalysis, optical properties and photogenerated electron-hole transmission mechanism are discussed in detail. The improved photocatalysis performance of the MoS 2 /SnO 2 /CC suggests the possibilities of developing the multi-layer heterostructure for further photocatalysis applications.