▎ 摘　　要

NOVELTY - Lead ion selective adsorption polyacrylonitrile ultrafiltration membrane comprises a support layer and a polyacrylonitrile separation layer, where the polyacrylonitrile separation layer contains nanoparticles surface-modified by phosphoramidate compound, and the nanoparticles include a nanoparticle core and a polydopamine coating layer. USE - The polyacrylonitrile ultrafiltration membrane is useful in field of lead ion wastewater treatment (claimed). ADVANTAGE - The polyacrylonitrile ultrafiltration membrane has excellent stability, and high-efficiency adsorption effect on lead ions. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: preparation of lead ion selective adsorption polyacrylonitrile ultrafiltration membrane; ion selective adsorption polyacrylonitrile ultrafiltration membrane prepared by above method.