▎ 摘　　要

NOVELTY - Preparing functionalized graphene nanosheet comprises adding graphite into organic alkali metal salt solution, and reacting by external action to obtain final product. USE - The method is useful for preparing functionalized graphene nanosheet. ADVANTAGE - The method: realizes structure control, layers number and functional density of graphene sheet by adjusting the size of the organic alkali metal solution and the external action; has high product yield, and low consumption and cost; and is green and environmentally friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for functionalized graphene nanosheet prepared by above method.