▎ 摘　　要

NOVELTY - Preparing graphene, comprises (a) mixing graphite and benzoyl peroxide and heating to obtain graphite oxide; (b) mixing the graphite oxide obtained in the step (a) with ammonium bicarbonate and grinding; (c) placing the mixture obtained in the step (b) in a microwave device for reaction; and (d) washing and drying the material obtained after the reaction in the step (c) to obtain graphene; where the graphene preparation process further relates to a graphene preparation device; the graphene preparation device comprises a supporting bottom frame (1), a bearing frame (2), a reciprocating seat mechanism (3), a roller pressing mechanism (4), a discharging power mechanism (5), an auxiliary discharging mechanism, a stirring mechanism and a stirring linkage mechanism. USE - The method is useful for preparing graphene. ADVANTAGE - The method can prepare the graphite oxide with high efficiency, and improves the graphene preparation efficiency. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the graphene preparation device. Supporting bottom frame (1) Bearing frame (2) Reciprocating seat mechanism (3) Roller pressing mechanism (4) Discharging power mechanism (5)