▎ 摘　　要

NOVELTY - Graphene is prepared by uniformly mixing and melting sodium chloride, potassium chloride and zinc chloride at mass ratio of 1:1:3 to obtain molten salt; adding graphite fluoride into molten salt at mass ratio of 1-5:50, heating to 200-350 degrees C for 6-12 hours, and performing thermal intercalation; naturally cooling obtained intercalated complex to room temperature at 20-25 degrees C, adding organic solvent, ultrasonically centrifuging, and removing lower layer solid; and filtering obtained solution, washing filter cake and drying. USE - Method for preparing graphene (claimed). ADVANTAGE - The method does not need high temperature, high vacuum condition and special reaction instrument. It has simple operation and low preparation cost. The obtained graphene sheet has large surface area and high tactility.