▎ 摘　　要

NOVELTY - Graphene preparation involves ultrasonically mixing natural graphite and peroxyacetic acid uniformly to form a mixed liquid, and then carrying out microwave treatment of the mixed liquid after standing at room temperature for a period to obtain graphene aggregates. The obtained graphene aggregates are ultrasonically dispersed in ethanol to obtain the graphene aggregates. USE - Method for preparing graphene. ADVANTAGE - The method prepares the graphene in a simple, cost-effective and eco-friendly manner with high quality, large size, no water washing and good environmental protection. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic comparison diagram of the sample of the prepared graphene aggregate and natural flake graphite.