▎ 摘　　要

In this letter, Bi nanoparticles/reduced graphene oxide (Bi NPs/rGO) composites catalysts were prepared by a simple solvothermal method. The obtained Bi NPs/rGO composites can be used as high-efficiency and bifunctional catalysts for photocatalytic dye degradation and hydrogenation. Especially, the Bi NPs/rGO showed a very high catalytic activity for aromatic nitro-compound reduction, which revealed a potential application in industrial hydrogenation.