▎ 摘　　要

NOVELTY - Preparation of graphene comprises mixing graphite raw materials, potassium ferrate and aspartic acid, ball-milling, washing with diluted hydrochloric acid, centrifuging, washing upper liquid until neutral with distilled water, centrifuging, and drying powder until constant weight. USE - Method for preparing graphene (claimed). ADVANTAGE - The method is simple. The graphene has intact structure. It is clean, environmentally friendly and free of secondary pollution. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for application of graphene comprising mixing graphene powder and ethylene glycol and distilled water, sequential adding anhydrous ferric chloride and anhydrous sodium acetate, stirring to form homogeneous mixture solution, adding mixed solution to sealed reaction kettle, spontaneously cooling, magnetic separating, washing, and drying to constant weight.