▎ 摘　　要

NOVELTY - Preparing graphene involves taking graphite as an anode, concentrated sulfuric acid as an electrolyte, and stainless steel as a cathode, where the graphite is oxidized to obtain graphene oxide. The graphene oxide is processed with alkali, and then dried to obtain graphene. The alkali is sodium hydroxide or potassium hydroxide. USE - Method for preparing graphene (claimed). ADVANTAGE - The method enables to prepare graphene in a safe, eco-friendly and simple manner, where prepare graphene has wide application prospect.