▎ 摘　　要

NOVELTY - Method for preparing graphene nanosheets by peeling method involves using graphite rods as raw materials, and ionic liquid aqueous solution as electrolyte and modifier, and exfoliating graphene rods with the help of applied voltage to obtain functionalized graphene nanosheets. USE - The method is used for preparing graphene nanosheets by peeling method. ADVANTAGE - The method adjusts the structure and number of graphene sheets by adjusting the ratio of ionic liquid and water in the ionic liquid aqueous solution and the size of the external voltage, controls the functional density, ensures high yield, reduces energy consumption, is cost-effective and environmentally safe.