Enhanced Interfacial Charge Transfer and Separation Rate based on Sub 10 nm MoS2 Nanoflakes In Situ Grown on Graphitic-C3N4

Herein, sub 10 nm MoS2 nanoflakes are successfully in situ grown on graphitic-carbon-nitride (MoS2/g-C3N4) through a hydrothermal strategy. The scanning electron microscopy result indicates that the thickness of the MoS2 nanoflakes is less than 10 nm, which can boost the transport rate of the photoproduced charge during the photodegradation process. Transmission electron microscopy result clearly shows that an excellent interfacial heterojunction is formed between g-C3N4 and MoS2, which will significantly improve the stability of catalysts. Particularly, the optimal 8% MoS2/g-C3N4 product displays significantly enhance catalytic performance and excellent long-term photodurability. These superior photocatalytic properties are attributed to the excellent interfacial heterostructure between MoS2 and g-C3N4, which extends the visible light absorption range, suppresses the recombination, and improves the transfer rate of photoproduced charge.