▎ 摘　　要

NOVELTY - The method involves using Morpholino ethanesulfonic (MES) phosphoric acid buffer solution to adjust the pH value of the solution to 4-6. A dissolved solution is poured to the surface of the active layer. Distilled water is used to wash. The aqueous solution is prepared with different amino-containing graphene oxide quantum dot concentration for ultrasonic for 1-2hours for uniformly dispersing the nano particles. The ultrasonic water solution and the activated polyamide layer are made in contact for 4-5hours. Amide reaction is performed. The film after reaction is cleaned by distilled water and stored in the distilled water. USE - Method for preparing a surface grafting amino-containing graphene oxide quantum dot positive osmosis membrane used in sea water desalination and sewage treatment. ADVANTAGE - The method enables composite film to achieve good permeability and effectively reduce influence of biological pollution to the film performance. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a method for preparing a surface grafting amino-containing graphene oxide quantum dot positive osmosis membrane.