▎ 摘　　要

NOVELTY - Preparing graphene oxide-polyvinylidene fluoride composite hollow fiber film comprises pre-processing polyvinylidene fluoride film wire by using polyethylene imine to obtain polyethyleneimine-polyvinylidene fluoride film wire, using polyethylene imine pre-processing graphene oxide obtaining polyethylene imine-graphene oxide, adding the polyethyleneimine-polyvinylidene fluoride film wire into the polyethyleneimine-oxidized graphene, compounding the polyethyleneimine-polyvinylidene fluoride film wire and the polyethyleneimine-graphene oxide by suction processing, taking out and drying to obtain the graphene oxide-polyvinylidene fluoride composite hollow fiber film. USE - The method is useful for preparing graphene oxide-polyvinylidene fluoride composite hollow fiber film used for sewage treatment and purification of tap water (claimed). ADVANTAGE - The film has high water flux and excellent stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene oxide-polyvinylidene fluoride composite hollow fiber film.