▎ 摘　　要

NOVELTY - Separation of graphene involves preparing expandable graphite, placing graphite in heating furnace, peeling off heated graphite to obtain expanded graphite, soaking expanded graphite in deionized water, rinsing, drying under vacuum conditions to obtain dried graphite, soaking dried graphite in aniline to obtain a mixed liquid, centrifuging mixture, filtering, washing filtrate, drying to obtain graphene, pouring graphene into mixer, pouring absolute ethanol into mixer, starting mixer, stirring mixture of graphene and absolute ethanol, leaving still for a certain period of time until the mixture is gradually layered, removing top layer of graphene using a leaching basket, starting mixer, polishing and placing polished graphene in drying box. USE - Separation of graphene. ADVANTAGE - The method enables simple preparation of graphene with low number of layers and high purity.