▎ 摘　　要

NOVELTY - Preparation of thin-layer graphene oxide material involves placing graphite paper and carbon rods in an electrolytic cell containing concentrated sulfuric acid, connecting a battery between graphite paper used as anode and carbon rods used as cathode for electrolysis, detaching the graphite paper into graphene microsheets, feeding the detached graphene microsheets into concentrated sulfuric acid electrolyte, removing the liquid from the electrolytic cell, adding diluent to the removed liquid for dilution, centrifuging the diluted liquid to obtain graphene microsheets, placing the graphene microsheets in a container, adding high-concentration acid solution and oxidant to the container to oxidize the graphene microsheets to obtain a thin-layer graphene oxide and dispersing the thin layer graphene oxide in the solvent. The volume ratio of diluted liquid and removed liquid is 12-14:1. USE - Preparation of thin-layer graphene oxide material. ADVANTAGE - The method produces thin-layer graphene oxide material in a short time, and has high efficiency.