▎ 摘　　要

NOVELTY - Preparing fluorine-doped graphene quantum dot comprises using graphene quantum dot as a raw material, and bismuth difluoride is a fluorine source, and bismuth difluoride is first decomposed and decomposed to generate fluorine gas and helium gas, and the driving, fluorine gas and helium gas enters the photochemical reaction chamber, and using ultraviolet light to irradiate fluorine gas and graphene quantum dots in the photochemical reaction chamber, and generating the fluorine gas high activity fluorine radicals under ultraviolet light irradiation and reacting the graphene quantum dots under ultraviolet light irradiation. USE - The method is useful for preparing fluorine-doped graphene quantum dot. ADVANTAGE - The method is simple and easy to operate.