▎ 摘　　要

In this paper, reduced graphene oxide/silver (RGO-Ag) nanocomposite was synthesized via a simple one-pot hydrothermal method for photocatalytic hydrogenation of nitrobenzene (NB) to aniline. The synthesized nanocomposite was characterized by UV-vis spectroscopy, Raman spectroscopy, FTIR, XPS, TGA and SEM. Results showed that the formation of metallic Ag and reduction of GO was achieved under hydrothermal condition. The result RGO-Ag nanocomposite was used as a novel photocatalyst for hydrogenation of nitrobenzene to aniline under visible light irradiation. Therefore, RGO-Ag nanocomposite can be used as an efficient photocatalyst as an alternative way for organic synthesis. Moreover, a possible mechanism was also proposed to explain the photocatalytic hydrogenation of NB to aniline over the proposed photocatalyst.