▎ 摘　　要

A new amine-functionalized graphene oxide (GO-NH2) nanosheet was prepared via covalently grafting reaction. The removal of U(VI) from aqueous solution with GO and GO-NH2 was compared using batch method. The adsorption of uranium ions could be well-described by the Langmuir isotherm and pseudo-second kinetic model. The adsorption capacities of GO and GO-NH2 were found to be 97.3 and 215.2 mg g(-1) at 298.15 K, respectively. Results showed that adsorption capacity of GO was significantly improved by amine functionalization.