▎ 摘　　要

NOVELTY - Producing graphene, involves: (a) contacting graphite with a polymer solution to exfoliate graphene from the graphite by forming a graphene-polymer composite; (b) separating graphite from the solution containing the graphene-polymer composite; (c) treating the solution containing the graphene-polymer composite to disassociate graphene from the polymer; and (d) isolating graphene from the solution. USE - The method is useful for producing graphene (claimed), which is useful for producing pure graphene sheet. ADVANTAGE - The method produces few-layer graphene with high purity, and with low basal plane and edge defects. The graphene produces pure graphene sheet with high yield in an economical, safe and environmentally-friendly manner. The produced graphene has high surface area and strong electronic, mechanical, thermal and chemical properties.