▎ 摘　　要

This paper describes the construction of reduced graphene oxide (rGO)/BiVO4 composites with maximized interfacial coupling and their application as visible light photocatalysts. Thin rGO sheets (<5 nm) could completely cover BiVO4 polyhedrons with highly active (040) facets exposed through an evaporation-induced self-assembly process. In addition to the increased surface adsorption effect of rGO, a considerable enhancement of the photoactivity of BiVO4 has been demonstrated through the degradation of methylene blue upon the covering of rGO. The improved photocatalytic activity is attributed to the formation of well-defined rGO/BiVO4 interfaces, which greatly enhances the charge separation efficiency.