▎ 摘　　要

NOVELTY - Production of ultrafiltration membrane involves dispersing oxidized graphene in an organic solvent, heating, adding an aminosilane coupling agent, drying, obtaining coupling agent-modified graphene oxide, dispersing in ethanol solution, adding silver nitrate solution, mixing, adding a reducing agent to carry out reduction reaction, filtering, drying, obtaining a silver oxide supported graphene, formulating a pore-forming agent into an aqueous solution, adding silver oxide supported graphene and a polyvinyl alcohol aqueous solution, carrying out film-forming reaction, and stripping. USE - Production of ultrafiltration membrane used in separation of bovine serum albumin (all claimed). ADVANTAGE - The method enables environmentally-friendly, simple, economical and easy production of ultrafiltration membrane having high water flux recovery rate, low flux decay rate for bovine serum albumin, and excellent antibacterial property and separation and retention performance. DETAILED DESCRIPTION - Production of ultrafiltration membrane involves dispersing oxidized graphene in an organic solvent, heating, adding an aminosilane coupling agent, refluxing, filtering, washing, drying, obtaining coupling agent-modified graphene oxide, dispersing resultant product in ethanol solution, adding silver nitrate solution, mixing, adding a reducing agent to carry out reduction reaction, filtering, washing, drying, obtaining a silver oxide supported graphene, formulating a pore-forming agent into an aqueous solution, adding silver oxide supported graphene, dispersing, adding a polyvinyl alcohol aqueous solution, stirring, defoaming, carrying out film-forming reaction, and stripping.