MoS2@SnO2 core-shell sub-microspheres for high efficient visible-light photodegradation and photocatalytic hydrogen production

Abstract Two-step hydrothermal processes have been used to synthesize MoS2@SnO2 core-shell sub-microspheres. The effect of the different weight of citric acid for MoS2@SnO2 core-shell sub-microspheres on the microstructural and photocatalytic properties was studied. The results indicate that MoS2@SnO2 core-shell sub-microspheres can reveal the highly efficient photocatalytic water splitting and degradation of rhodamine B solution under visible-light irradiation. The enhanced photocatalytic performance was ascribed to MoS2 sub-microspheres decorated with SnO2 nanoparticles, improving their surface-to-volume ratio and photoinduced electron-hole pairs separation.