▎ 摘　　要

A novel visible light driven photocatalyst, reduced graphene oxide (RGO)-modified Ag/AgBr (Ag/AgBr/RGO), was synthesized by sequent double-jet precipitation, hydrothermal, and UV light reduction processes. The XPS and Raman results confirmed that part of GO was successfully reduced by hydrothermal treatment. Compared with Ag/AgBr, Ag/AgBr/RGO exhibited higher visible light photocatalytic activity for the degradation of methyl orange. The EIS analysis revealed that Ag/AgBr/RGO has better capability for charge transfer than Ag/AgBr. The excellent photocatalytic activity of Ag/AgBr/RGO is attributed to the strong visible light absorption of Ag nanoparticles and AgBr as well as the effective separation of photogenerated electrons and holes. (C) 2013 Elsevier B. V. All rights reserved.