▎ 摘　　要

NOVELTY - Method for preparing graphene oxide involves (a) adding graphite, metal oxide, and non-metal oxide in a stirrer containing a solvent for stirring and milling, and obtaining a mixture suspension under the force of shearing and/or milling, (b) placing the mixture suspension in a magnetic field container for stirring treatment, the graphite and oxides in the mixture suspension generates a potential difference when moving in a magnetic field environment, so that a large amount of highly active oxygen generates in the oxide, free radicals combine with the highly charged graphite crystal portions to generate graphite oxide, continuing to stir or apply ultrasonic treatment, and forming a graphene oxide composite suspension in the magnetic field container, (c) centrifuging the graphene oxide composite suspension to obtain graphene oxide solution, and (d) suction filtering the graphene oxide solution and drying to obtain graphene oxide material. USE - The method is used for preparing graphene oxide. ADVANTAGE - The method utilizes the potential difference between graphite and oxide material in a moving state under a magnetic field environment, so that a large number of highly active oxygen free radicals are generated in the oxide and combined with charged and highly active graphite crystals to generate graphene oxide, and increases the graphite oxide structural properties of olefin crystals.