▎ 摘　　要

NOVELTY - Preparing nano- grade sheet graphene oxide material comprises using glass carbon material having a grain size of 1-500 nm as an anode, immersing in an electrolyte, and then inserting into a cathode counter electrode, applying a voltage between the anode and the cathode to perform an electrochemical oxidation stripping treatment, oxidizing anode material gradually and stripping during the electrochemical reaction and dispersing into the electrolyte and subjecting the electrolytic solution containing the anode stripping material to centrifugation, washing, dialyzing and drying. USE - The method is useful for preparing nano-grade sheet graphene oxide material. ADVANTAGE - The material has safety, high efficiency, high product purity and no metal ion impurities; and is environmentally-friendly.