▎ 摘　　要

NOVELTY - Preparation method of graphene comprises using concentrated sulfuric acid for graphite oxidation, mixing this with metal powder and resin, diluting in acid reaction mixture, pressing into resolve electrode using a platinum electrode, electrolytic decomposing the electrode until it disappears, filtering the solution, washing in water, adding polyethylene pyrrolidone and ultrasonic washing to obtain graphene. USE - Preparation method of graphene used in semiconductors. DESCRIPTION OF DRAWING(S) - The drawing is a flowchart of the preparation method of graphene (Drawing include non-English language text).