▎ 摘　　要

Forward osmosis (FO) is an emerging membrane separation technology in environmental and industrial process. The prepared membranes with various graphene oxide (GO) nanosheets loading were characterized by morphology and chemical analysis as well as model fouling tests in this paper. The result showed that the addition of GO nanosheets in casting solution led to an improvement in hydrophilicity, porosity, stress tensile and water permeability for the modified cellulose triacetate (CTA) membrane. As for the model fouling tests, the GO-modified CTA membrane presented an advantage of antifouling ability to biopolymers and oil emulsion. It was also found that the increase of ionic strength caused by reverse salt leakage affects the bovine serum albumin (BSA) fouling more significantly than sodium alginate (SA) fouling due to charge screening reduces the electrostatic repulsion between BSA molecules and membrane surface. The GO-modified membranes presented an ideal performance in oil emulsion separation due to its high hydrophilicity.