▎ 摘　　要

NOVELTY - Graphene polyacrylonitrile hollow fiber membrane comprises 20-50 wt.% polyacrylonitrile powder, 0.1-15 wt.% graphene oxide solution, 1-5 wt.% modifying agent, 1-10 wt.% porogen and 30-60 wt.% solvent. USE - Used as graphene polyacrylonitrile hollow fiber membrane. ADVANTAGE - The fiber membrane: is combined with graphene elements, which can not only filter suspended particles, colloids, and heavy metal particles in water, but also block bacteria and pathogens, and at the same time exert graphene antibacterial and antibacterial functions, avoids secondary pollution of water quality, and ensures drinking water quality i.e. always in a good state, and protects people's health. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the graphene polyacrylonitrile hollow fiber membrane, comprising (i) taking each above material; (ii) preparing graphene oxide solution to obtain functional graphene slurry; (iii) adding functional graphene slurry and modifying agent obtained in the step (ii) into the solvent, after stirring, carrying out ultrasonic, then adding polyacrylonitrile powder, porogen, heating and agitating, preparing the casting solution; (iv) adding obtained casting solution into reaction kettle, filtering, defoaming, removing insoluble substance, bubbles and impurities, the starting row material, adopting dry-wet spinning, spinning the film wire passes through the air passage, and then entering the coagulating bath, washing by water after soaking extraction bath in the de-ionized water at room temperature; and (v) stretching the obtained product in step (iv) for two times in the water bath, and drying the obtained film wire