▎ 摘　　要

NOVELTY - A graphene adsorption material comprises graphene oxide/chitosan/potassium copper hexacyanoferrate (III) composite aerogel loaded for 3 times, prepared by mixing graphene oxide dispersion and chitosan dispersion with a degree of deacetylation of not less than 80%, shaking into a gel, standing, removing uncrosslinked reactants, nearly drying, rinsing with copper nitrate solution until the effluent is blue, washing with water until colorless, rinsing with potassium ferrocyanide solution until effluent is light yellow, and washing with water until the effluent is colorless; nearly drying, rinsing with copper nitrate solution, washing with water, rinsing with potassium ferrocyanide solution, and washing with water; and nearly drying, rinsing with copper nitrate solution until the effluent is blue, washing with water until colorless, rinsing with potassium ferrocyanide solution until effluent is light yellow, and washing with water until the effluent is colorless. USE - The graphene adsorption material is used for removal of radioactive cesium ions in water (claimed). ADVANTAGE - The absorption material has good adsorption selectivity and balance adsorption amount.