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

摘要： A sandwich-structured MoS2/SnO2/Carbon cloth (MoS2/SnO2/CC) photocatalyst was successfully synthesized through simple two-step hydrothermal method. The MoS2/SnO2/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 photo-generated electron-hole transmission mechanism are discussed in detail. The improved photocatalysis performance of the MoS2/SnO2/CC suggests the possibilities of developing the multi-layer heterostructure for further photocatalysis applications.