▎ 摘　　要

NOVELTY - Reduction of graphene comprises uniformly mixing graphite oxide, acrylamide and pure water to obtain graphene oxide solution; adding reducing agent sodium borohydride, calcium hydroxide and ferrous sulfate; ultrasonically mixing; and carrying out natural sedimentation at 5 degrees C, and separating precipitate. USE - Method for reducing graphene (claimed). ADVANTAGE - The graphene has large specific surface area. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the composition of graphene comprising 2-5 g graphite oxide, 3-10 g acrylamide, 500-1000 g pure water, 5-10 g sodium borohydride, 5-10 g calcium hydroxide and 10-20 g ferrous sulfate.