▎ 摘　　要

Graphene is a functional material with manifold excellent perfomances, however, its chemical in-active have been hampering its development. The preparation of dispersible graphene is an important mean to the application of graphene. A functionalized graphene (FG) was prepared by treatment of graphite oxide (GO) with gamma-aminopropyl-triethoxysilane, and then reduced by hydrazine hydrate. The functionalized graphene without dried can be stable dispersed in DMF/H2O(9:1, volume ratio) and acetone/H2O (9:1, volume ratio), and the suspension of functionalized graphene in DMF/H2O(9:1, volume ratio) can also be dispersed in ethanol or acetone. Infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) were used to characterize the structures of FGO and FG. The results show that the amino on the KH-550 reacted with carboxyl of graphite oxide generating amide, and happened addition reaction with epoxy of graphite oxide. The dried functionalized graphene layers bond with S-1-O-S-1.