▎ 摘　　要

NOVELTY - Preparation of graphene oxide-coated polyacrylonitrile composite nanofiber membrane involves adding graphene oxide to N,N-dimethylformamide solution, performing ultrasonic stripping treatment, obtaining graphene oxide dispersion, adding polyacrylonitrile precursor filament into the graphene oxide dispersion, heating and stirring, obtaining electrospinning solution, removing air bubbles in the electrospinning solution, performing electrospinning, obtaining a nanofiber membrane, and drying. USE - Preparation of graphene oxide-coated polyacrylonitrile composite nanofiber membrane (claimed). ADVANTAGE - The method provides high-performance graphene oxide-coated polyacrylonitrile composite nanofiber membrane having nanofiber diameter of 500-600 nm.