▎ 摘　　要

NOVELTY - Magnetic oxidation graphene/sodium alginate composite material comprises sodium alginate ball and ferric oxide and graphene oxide embedded in the sodium alginate ball. USE - The magnetic oxidation graphene/sodium alginate composite material is used in cationic dye adsorption (claimed). ADVANTAGE - The composite material has high dye, removes the water, and can be magnetically separated and recycled, and satisfies the actual application requirement. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing the magnetic oxide/graphene alginate composite material, comprising uniformly mixing the oxidized graphene aqueous solution, sodium alginate and ferroferric oxide, forming oxidized graphene sodium alginate ferro-ferric oxide mixed solution, dropping the mixed solution into calcium chloride solution and curing to obtain the magnetic oxide/graphene alginate composite material.