▎ 摘　　要

NOVELTY - Preparation of hydrophobic electrospun nanofiber membrane based on fluorinated graphene oxide nanosheets involves (1) dispersing carbon fluoride in concentrated sulfuric acid/concentrated phosphoric acid solution and stirring, adding potassium permanganate after stirring and continuing stirring to obtain a mixed solution, adding the obtained mixed solution into ice water, further adding hydrogen peroxide, and collecting the solid on the top of liquid surface after standing still, which is the highly fluorinated graphene oxide nanosheets, and (2) ultrasonically dispersing the obtained highly fluorinated graphene oxide nanosheets in a dimethylformamide solvent, dissolving polyvinylidene fluoride polymer in a mixed solvent of dimethylformamide/acetone, mixing two solutions to obtain a uniformly dispersed solution, which is used as an electrospinning polymer solution, which is subjected to electrospinning. USE - Preparation of hydrophobic electrospun nanofiber membrane based on fluorinated graphene oxide nanosheets used in membrane distillation application (claimed). ADVANTAGE - The fluorinated graphene oxide nanosheets have unique two-dimensional sheet-like structure, at the same time, the fluorine group gives high hydrophobicity, serves as an additive material to prepare superhydrophobic nanofiber membrane materials, and the method is suitable for industrialization of membrane distillation. The water flux and interception rate of the electrospinning nanometer fiber film is improved.