▎ 摘　　要

NOVELTY - Oxidation and surface activation are performed on graphite powder in presence of mixed acid and strong oxidizing agent to obtain functionalized graphene surface containing various functional groups e.g. hydroxyl group and carboxyl group. Cyclodextrin, magnetic microparticles and crosslinking agent are dissolved in ammonia aqueous solution, obtained functionalized graphene is added, mixed, reacted under certain conditions, separated by applied magnetic field, washed and dried to obtain magnetic cyclodextrin/graphene biological adsorbing material. USE - Manufacture of new nano magnetic cyclodextrin/graphene biological adsorbing material (claimed). ADVANTAGE - The method provides nano magnetic cyclodextrin/graphene biological adsorbing material having high adsorption capacity, enlarged adsorbing specific surface area, excellent structure stability, mechanical stability. Nano magnetic cyclodextrin/graphene biological adsorbing material can be recycled without polluting the environment.