▎ 摘　　要

NOVELTY - Molybdenum disulfide oxide-graphene oxide composite nanofiltration membrane comprises organic ultrafiltration membrane support body modified by polyvinyl alcohol solution and a functional layer arranged on the organic ultrafiltration membrane support body. The functional layer is formed by using the mixed aqueous solution of the molybdenum disulfide oxide aqueous solution and the graphene oxide aqueous solution as raw material to be self-assembled on the organic ultrafiltration membrane support by suction filtration. The molecular weight of the polyvinyl alcohol in the polyvinyl alcohol solution is 50000-100000 . USE - Molybdenum disulfide oxide-graphene oxide composite nanofiltration membrane used for water treatment. ADVANTAGE - The molybdenum disulfide-graphene oxide composite nanofiltration membrane has improved membrane layer flux under low pressure operation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing molybdenum disulfide oxide-graphene oxide composite nanofiltration membrane, which involves preparing a molybdenum disulfide oxide aqueous solution and a graphene oxide aqueous solution by an improved Hummers method, obtaining a mixed aqueous solution of molybdenum disulfide oxide and graphene oxide, and subjecting to suction filtration and self-assembly on an organic ultrafiltration membrane support body modified by a polyvinyl alcohol solution to form the functional layer.