▎ 摘　　要

NOVELTY - Preparing graphene-based copper ion imprinted hydrogel comprises (1) preparing alkynyl-functionalized polyacrylic acid and thiolated graphene, (2) dissolving chitosan in an aqueous glacial acetic acid solution, add the alkynyl-functionalized polyacrylic acid, and after mixing, adding an aqueous solution of copper nitrate to disperse evenly, add thiolated graphene, and after dispersing evenly, adding a photoinitiator under the protection of nitrogen, the polymerization reaction is initiated by irradiation with ultraviolet light, and the reaction product is suction filtered to collect the filter cake, and (3) soaking the filter cake in a mixed aqueous solution of glutaraldehyde and thiourea, perform cross-linking reaction at 60-70℃ and washing with hydrochloric acid to remove template Cu2+ to obtain the graphene-based copper ion imprinted water gel. USE - The method is useful for preparing graphene-based copper ion imprinted hydrogel. ADVANTAGE - The Preparing graphene-based copper ion imprinted hydrogel has specific selectivity to the copper ion. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: alkenyl copper graphite imprinted hydrogel obtained by above method; preparing graphene-based copper ion imprinted hydrogel.