▎ 摘　　要

NOVELTY - The preparation of graphene involves (1) preparing graphite scales into graphene oxide, (2) ultrasonically stripping obtained graphene oxide, (3) mixing stripped graphene oxide with aqueous solution, adding aqueous ammonia solution to adjust pH of solution 9-10, (4) adding vitamin C as reducing agent and stabilizer to mixed solution, and stirring evenly in hot water bath to obtain graphene mixed solution, and (5) washing obtained graphene mixed solution to adjust pH to 7 and filtering. USE - Preparation of graphene. ADVANTAGE - The method enables preparation of graphene by simple, environmentally-friendly, economical and quick process.