▎ 摘　　要

NOVELTY - Preparation of graphene comprises mixing solid organic acid and catalyst, placing the mixture in a reactor, reacting under inert or reducing gas protection, cooling to room temperature to obtain solid product, washing the solid product, filtering, and drying to obtain graphene. USE - Preparation of graphene (claimed). ADVANTAGE - The method has no pollution and low cost and is simple and suitable for large scale implementation.