▎ 摘　　要

NOVELTY - A graphene oxide absorbing material is prepared by modifying dendritic macromolecule. USE - Method for preparing graphene oxide absorbing material for removing lead ion, cadmium ion, manganese ion, copper ion and heavy metal ion (claimed). ADVANTAGE - The method obtains materials with high absorption capacity for lead ion, cadmium ion, manganese ion, copper ion and heavy metal ion, which reaches more than 300 mg/g.