▎ 摘　　要

NOVELTY - Usage method of organic acid in preparation of graphene involves (S1) soaking mixed product containing crude graphene in deionized water to obtain a suspension, (S2) adding the organic acid to the suspension until the pH of the suspension is 6-7, repeatedly-washing with deionized water and ethanol, centrifuging at high-speed, placing the precipitate in an oven for drying to obtain graphene product. USE - Usage method of organic acid in preparation of graphene (claimed). ADVANTAGE - The method does not use inorganic acid such as hydrochloric acid and various strong acid for neutralizing and washing, is environmentally-friendly, and reduces the production cost of graphene.