▎ 摘　　要

NOVELTY - A method for preparing modified graphene, comprising: (a) adding graphene and sulfur and nitrogen compounds into water to form a mixture; (b) putting the mixture in a reactor and heating it to 80-100C; (c) stirring the And cooling the mixture; and (d) performing solid-liquid separation of the mixture, and storing the solid part as modified graphene. The surface of the modified graphene includes at least one amino group and at least one sulfur.