▎ 摘　　要

NOVELTY - An ordered sheet layer polyamidoxime oxidation graphene composite material involves mixing polyamidoxime alkaline solution and graphene oxide aqueous solution, uniformly stirring at room temperature to obtain polyamidoxime graphene oxide mixed solution, taking polyamidoxime graphene oxide mixed solution into mold, first freezing on upper liquid nitrogen, placing in freeze dryer cold trap, second freezing, and drying. The mass ratio of graphene oxide and polyamidoxime is 5-15:85-95. USE - The method is used for preparing ordered sheet layer polyamidoxime oxidation graphene composite material used for extracting uranium from seawater (claimed). ADVANTAGE - The method uses supramolecular action between graphene oxide and amidoxime self-assembly to form macroporous structure. The composite material has super-high hydrophilicity and water permeability to have excellent uranium adsorption efficiency and uranium adsorption selectivity.