▎ 摘　　要

NOVELTY - Graphene separation and purification involves adding solvent to pulverized high-temperature carbonized product powder, dispersing at a high speed to obtain a mixed solution, separating the mixed solution by centrifugation, and then removing the precipitate for collecting the graphite thin suspension. The obtained graphite dilute suspension is dispersed at a high speed, and then centrifuged, filtered, and dried to obtain the graphene having 1-10 layers. USE - Method for separating and purifying graphene from pyrolyzed carbon. ADVANTAGE - The method for separating and purifying graphene from pyrolyzed carbon in a simple, cost-effective and eco-friendly manner with wide application range and high purity. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic laser Raman spectrum of the isolated and purified graphene.