▎ 摘　　要

NOVELTY - Preparation of biocompatible graphene comprises preparing oxide graphite through Hummer method; placing oxide graphite in water to form uniformly dispersed oxide graphene solution with mass concentration of 0.25-1 g/l; dripping ammonia water with mass concentration of 28% to oxide graphene solution; dissolving reducing agent in water to form 0.25-2g/l reducing agent aqueous solution; uniformly mixing oxide graphite solution with reducing agent aqueous solution; placing mixed solution in oil bath to agitate; and washing and drying mixture to obtain graphene. USE - Preparation of biocompatible graphene used as electrode material of super capacitor. ADVANTAGE - The method has simple conditions, non-toxic and environmentally-friendly. It produces graphene that can steadily disperse in aqueous solution, has very good biocompatibility, and has excellent properties.