▎ 摘　　要

NOVELTY - Preparation of few layers of graphene by stripping soot particles by friction induction involves taking biodiesel mixed fuel soot as raw material, dispersing uniformly in deionized water, and processing under condition of ball-disc reciprocating friction. USE - Preparation of few layers of graphene by stripping soot particles by friction induction used as base lubricating oil in lubricating additive (all claimed). ADVANTAGE - The method selects carbon smoke of biodiesel mixed fuel combustion raw material to prepare a few layers of graphene which changes waste into valuable, and enlarges the source of raw material preparing graphene.