▎ 摘　　要

The aim of the present study is to synthesize dispersible reduced graphene oxide (RGO) via functionalization with metals and metal oxides and explore their potential applications in water purification. Graphene-based metal and metal oxide composites were synthesized hydrothermally using sodium borohydride as a reducing agent and sodium sorbate as a stabilizer. Single (Ag, Cu2O, and Fe3O4) and bimetallic (Ag-Cu2O, Ag-Fe3O4, and Cu2O-Fe3O4) nanoparticles were incorporated on the surface of RGO. The synthesized composites were characterized by various analytical methods. The inactivation of E. coli, the catalytic degradation of 4-nitrophenol, and the adsorption of As(V) were examined using the RGO composites. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.