Carbon-molybdenum disulfide(C-MoS2)ultrathin nanosheets were prepared by a hydrothermal process,and then Agl/C-MoS2 were synthesized via an in-situ deposition method.This ternary heterojunction composite exhibited better photo-catalytic activity compared with those of one-component(pristine MoS2)and bi-component(Agl/MoS2 and C-MoS2)materials for the degradation of organic dyes under the visible-light irradiation.In particular,by comparing with Agl/MoS2,the significant role of conductive amorphous carbon in Agl/C-MoS2 in enhancing the charge transfer during the photocatalytic degradation of dyes was first confirmed by photocurrent response and electrochemical impedance spectroscopy(EIS).A possible photocatalytic mechanism was proposed based on the capture experiment results.Furthermore,a straightforward and interesting way had been applied to test the recycled/newly-prepared Agl/C-MoS2 composite for revealing its distinctive self-cleaning performance and recyclability characteristic besides its good photocatalytic activity.This work could provide a reference for the design of other new ternary heterojunction composite materials with special structures and properties.