▎ 摘　　要

NOVELTY - Preparation of sulfonated graphene oxide-supported metal organic framework composite nanomaterial involves dissolving sulfonated graphene oxide in dimethylformamide at room temperature, ultrasonically-processing (p1), adding zirconium chloride and terephthalic acid in a molar ratio of 1:(1-2), ultrasonically-processing (p2), adding concentrated hydrochloric acid to obtain a mixed solution, maintaining at 80-180 degrees C, and reacting for 36-48 hours. The mass ratio of sulfonated graphene oxide with respect to total amount of terephthalic acid and zirconium chloride is 0-0.15. USE - Preparation of composite nanomaterial used for preparing sulfonated graphene oxide-supported metal organic framework modified forward osmosis nanocomposite membrane (all claimed). ADVANTAGE - The method enables preparation of sulfonated graphene oxide-supported metal organic framework composite nanomaterial having improved membrane salt cut-off performance and pollution removal performance by suppressing agglomeration of nanomaterial. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the sulfonated graphene oxide-supported metal organic framework modified forward osmosis nanocomposite membrane, which involves dissolving (i) m-phenylenediamine in deionized water to obtain an aqueous monomer solution, dissolving trimesoyl chloride in n-hexane to obtain an organic phase solution, adding the sulfonated graphene oxide-supported metal organic framework composite nanomaterial to the organic phase solution, and ultrasonically-dispersing to obtain a treated organic phase solution, and immersing (ii) a base film in the aqueous monomer solution, drying to remove excess liquid to obtain a dried film, applying the treated organic phase solution to surface of dried film, performing interfacial polymerization reaction to obtain a separation layer.