▎ 摘　　要

Graphene oxide (GO), silver (Ag), and polyamidoamine (PAMAM) have individually proven effective at enhancing the properties of thin-film nanocomposite (TFN) membranes. Here, we report their synergic efficacy for water purification and desalination purposes. We fabricate TFN membranes filled with Ag-PAMAM-decorated graphene oxide (GO@PAMAM@Ag) and characterize their surface hydrophilicity, water permeability, salt and dye retentions, and antibacterial and antifouling capacities. We show that TFNs filled with 0.02 wt% GO@PAMAM@Ag have a contact angle of similar to 26 degrees, down from similar to 53 degrees in the pristine form, exhibiting strong antifouling properties. Molecular weight cut-off values of the membranes indicate that the filler considerably reduces the pore size of the membranes. We show that the filler improves the rejection capacity of TFN membranes against Na2SO4 and Cr(NO3)(3) and imparts to the membranes excellent dye retention (>99% for Viola Crystallina) and inhibitory effects against two main causative agents of bloodstream infections, Escherichia coli and Staphylococcus aureus. Overall, GO@PAMAM@Ag-filled TFN membranes exhibit quality performance across several indicators showing great promise for use in water treatment facilities.