Method for preparing nitrogen-doped fluorinated graphene by using graphite fluoride
A technology of fluorinated graphene and fluorinated graphite, which is applied in the direction of graphene and nano-carbon, can solve the problems of weakening the performance of composite materials and low compatibility, and achieves easy operation and control, good compatibility and simple process route Effect
Pending Publication Date: 2019-01-18
SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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The invention relates to a method for preparing nitrogen-doped fluorinated graphene by using graphite fluoride, comprising the following steps: raw materials are weighed in proportion and are added into an agate pot, agate beads are added to help grinding, and uniform stirring is performed; the mixture is placed in a ball mill to be subjected to ball milling for 15 to 30 hours, wherein the ball milling frequency is 540 to 600 rpm; after ball milling is ended, the nitrogen-doped fluorinated graphene containing a small amount of impurities is ultrasonically dispersed in deionized water to obtaina water system mixed suspension; the water system mixed suspension obtained after ultrasonication is placed in a centrifuge tube for centrifugation, a fluorinated graphene stabilized suspension in which the upper layer is doped with nitrogen element is collected, and precipitate is discarded; and the water in the fluorinated graphene stabilized suspension in which nitrogen element is doped is removed by suction filtration, and vacuum drying is performed to obtain the nitrogen-doped fluorinated graphene. The preparation process of is relatively simple, and easy to operate and control, which can realize large-scale production; the prepared nitrogen-doped fluorinated graphene has good quality and improved hydrophilicity.
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