Abstract: Biogenic silver nanoparticles (Bio-Ag0) were synthesized via the bioreduction method.Bio-Ag0/PES nanocomposite membranes were prepared by blending different amounts of Bio-Ag0 to the PES dope solution using the phase-inversion process.SEM results demonstrated that Bio-Ag0 can well disperse on PES matrix without obvious aggregation.Bio-Ag0 incorporation slight improved the cross-section morphology of PES membrane,and improved the water permeability and also did not sacrifice the protein rejection capability of composite membranes.The anbiofouling property of Bio-Ag0/PES were tested by inhibition zone method,colony forming count method and the biofilm formation assay.Bio-Ag0/PES not only exhibited excellent anti-bacterial activity,but also prevented bacteria attachment on the membrane surface and decreased the biofilms formation.Bio-Ag0/PES were considered to be an effective strategy to significantly improve the anti-biofouling properties of membrane materials.
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