▎ 摘　　要

NOVELTY - A graphene oxide is prepared by mixing 5-20 wt.% flake graphite powder and 80-95 wt.% corundum phase alumina powder, placing directly in a muffle furnace with an air atmosphere at 1000-1300degrees Celsius for 10-40 minutes, taking out, cooling naturally or in water to obtain corundum powder coated with yellow graphite oxide, adding water or absolute ethanol, placing in a planetary ball mill for wet ball milling for 10-24 hours, centrifuging, and drying. USE - The method for preparing graphene oxide. ADVANTAGE - The method does not use any strong acid.