▎ 摘　　要

NOVELTY - Preparing graphene oxide-type nanofiltration membrane involves preparing a P (NIPAM-MAA) nanogel having temperature and pH response properties, dispersing the prepared P (NIPAM-MAA) nanogel and graphene oxide in ultrapure water in proportion, where ratio of P (NIPAM-MAA) nanogel and graphene oxide is not more than 10 to obtain uniformly dispersed solution of nanogel and graphene oxide. The P (NIPAM-MAA) nanogel and graphene oxide are self-assembled on the polyethersulfone ultrafiltration bottom membrane by filtration, in which the P (NIPAM-MAA) nanogel is uniformly dispersed in the graphene oxide sheet to obtain prepare graphene oxide nanofiltration membrane. USE - Method for preparing a graphene oxide-type nanofiltration membrane. ADVANTAGE - The method enables to prepare graphene oxide-type nanofiltration membrane that has excellent temperature and pH response performance and high water flux and selectivity separating and exhibits excellent separation performance.