▎ 摘　　要

NOVELTY - Preparing single-layer graphene, comprises: (a) respectively dispersing oxidized graphene (as an initial raw material) and polymer surfactant into dimethyl formamide, and mixing two solutions uniformly; (b) reacting at 140-160 degrees C for 1-2 hours; and (c) cooling to room temperature and pumping to obtain graphene solid. USE - The method is useful for preparing single-layer graphene. ADVANTAGE - The method: does not utilize toxic and harmful reducing agent, and utilizes organic solvent dimethyl formamide which have synergistic function in reducing process; produces no environment pollution, and has simple and easy operation, and utilizes low cost raw material; and is suitable for industrial production.