▎ 摘　　要

NOVELTY - Preparing carboxy-containing polyaryletherketone (I) and graphene oxide-metal-organic frameworks (MOF) composite ultrafiltration membrane, comprises taking carboxy-containing polyaryletherketone as matrix and graphene oxide-MOF as filler, performing solution blending to obtain casting solution, and then carrying out non-solvent phase inversion to obtain final product, where the carboxy-containing polyaryletherketone (I) and graphene oxide-metal-organic frameworks (MOF) composite ultrafiltration membrane, comprises carboxy-containing polyaryletherketone and graphene oxide-MOF composite materials, the graphene oxide-MOF composite material comprises 0.02-0.1 wt.% carboxy-containing polyaryletherketone. USE - The carboxy-containing polyaryletherketone (I) and graphene oxide-MOF composite ultrafiltration membrane is useful for water treatment and purification. ADVANTAGE - The composite ultrafiltration membrane: has a pure water flux of 591 l/m2h, a bovine serum albumin (BSA) rejection rate of up to 95.76%, and a flux recovery rate of 92%; has excellent hydrophilicity, large flux, strong anti-pollution performance, low cost, stable mechanical properties and strength, and a broad vision of application. DETAILED DESCRIPTION - Preparing carboxy-containing polyaryletherketone of formula (I) and graphene oxide-metal-organic frameworks (MOF) composite ultrafiltration membrane, comprises taking carboxy-containing polyaryletherketone as matrix and graphene oxide-MOF as filler, performing solution blending to obtain casting solution, and then carrying out non-solvent phase inversion to obtain final product, where the carboxy-containing polyaryletherketone (I) and graphene oxide-metal-organic frameworks (MOF) composite ultrafiltration membrane, comprises carboxy-containing polyaryletherketone and graphene oxide-MOF composite materials, the graphene oxide-MOF composite material comprises 0.02-0.1 wt.% carboxy-containing polyaryletherketone. x = 0-100; n = positive integer.