▎ 摘　　要

NOVELTY - The preparation method of fluorine content adjustable fluorinated graphene involves: alkali treating fluorinated graphite by adding fluorinated graphite to a mixed alkali and heating fluorinated graphite; and ultrasonically preparing fluorinated graphene by adding water to fluorinated graphite, ultrasonically stripping, allowing mixture to stand, recovering surface layer of unreacted fluorinated graphite, filtering upper liquid, washing and drying. USE - The method is useful for fast and efficient preparation of fluorine content adjustable fluorinated graphene, which is used for nanoelectronic device, biological material and lubricating material. ADVANTAGE - The method enables fast and efficient preparation of fluorine content adjustable fluorinated graphene with high practical value at low cost. DETAILED DESCRIPTION - The fast and efficient preparation method of fluorine content adjustable fluorinated graphene involves: alkali treating fluorinated graphite by adding fluorinated graphite to a mixed alkali consisting of sodium hydroxide and potassium hydroxide and heating fluorinated graphite at 170-180 degrees C under atmospheric pressure to obtain a mixture of fluorinated graphite and alkali; and ultrasonically preparing fluorinated graphene by adding water to fluorinated graphite, ultrasonically stripping, allowing mixture to stand, recovering surface layer of unreacted fluorinated graphite, filtering upper liquid, washing and drying fluorinated graphene.