▎ 摘　　要

NOVELTY - The method involves mixing and first stirring flake graphite and first concentrated sulfur and the second concentrated sulfuric acid, filtering described second concentrated sulfuric acid, and obtaining graphite intercalation mixture liquid under the condition of preset reaction temperature. The graphite intercalation mixed liquid is mixed with the first deionized water and stirred for the second time to obtain a premixed liquid. A mixed gas is passed into the premixed liquid, and ultraviolet rays are irradiated at the same time. A treatment solution is obtained, the treatment solution is mixed with second deionized water and precipitate to obtain a supernatant. The supernatant is ultrasonically dispersed and dried to obtain the graphene oxide. The mass concentrations of the first concentrated sulfuric acid and the second concentrated sulfuric acid are both 98%. USE - Preparation method of graphene oxide for pollutant adsorption, composite material preparation, anti-corrosion and energy fields. ADVANTAGE - The method reduces the oxidant cost and effectively improves the stability of oxidant, so that the oxidation degree of the graphene product is controllable by using centrifugal and ultrasonic dispersion, so that it can effectively control the sheet diameter size of the oxidized graphene product, and the operation is simple. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram of the preparation method of graphene oxide for pollutant adsorption, composite material preparation, anti-corrosion and energy fields. (Drawing includes non-English language text).