▎ 摘　　要

NOVELTY - A functional beta -cyclodextrin modified graphene oxide composite material is prepared by taking beta -cyclodextrin, adding dimethylformamide solvent, mixing, pumping nitrogen, adding (3-glycidoxypropyl)methyldiethoxysilane, mixing, adding sodium hydroxide, stirring for 48 hours, cooling, adding acetone, precipitating, drying, adding deionized water, dissolving, adding glacial acetic acid solution, regulating pH value to 4-6, stirring for 1 hour, adding graphene oxide hydrolyzate, ultrasonic dispersing for 40 minutes, stirring for 10 hours, washing with deionized water, and filtering. USE - Method for preparing functional beta -cyclodextrin modified graphene oxide composite material (claimed). ADVANTAGE - The method is simple, low-cost, environment-friendly and easy to separate.