The visible-light photocatalytic performance of the heterostructured g-C3N4/Ag/Bi3.64Mo0.36O6.55 nano spheres was investigated. As electron sinks, Ag nanoparticles (NPs) were photodeposited as the interlayer between g-C3N4 and the surface of Bi3.64Mo0.36O6.55 nanospheres to increase visible-light absorption via the surface plasmon resonance. The g-C3N4/Ag/Bi3.64Mo0.36O6.55 nanospheres displayed efficiently photo catalytic performance, higher than that of pure g-C3N4/Ag/Bi3.64Mo0.36O6.55, Ag/Bi3.64Mo0.36O6.55, and g-C3N4/Bi3.64Mo0.36O6.55 samples. The photocatalytic efficiency enhancement of g-C3N4/Ag/Bi3.64Mo0.36O6.55 photocatalyst could be ascribed to the efficient separation of electron-hole pairs through the heterostruncture composed of Bi3.64Mo0.36O6.55, Ag and g-C3N4. In addition, the quenching effects of different scavengers revealed that the reactive h(+) and O-2(center dot-) play the major role in the Rh B decolorization. (C) 2016 Elsevier B.V. All rights reserved.