Polysulfone ultrafiltration membrane was modified by novel nanoporous SBA-16-COOH during the membrane preparation via the phase inversion. The pure water flux and bovine serum albumin (BSA, as the foulant) flux were measured at 2 bar and the membranes’ antifouling behavior were analyzed. The membranes showed higher water flux after SBA-16-COOH addition up to 2 wt% and after that the flux slightly decreased which is attributed to the aggregation of SBA-16-COOH particles at the higher concentrations. SBA-16-COOH addition improved the surface hydrophilicity and led to elongated finger-like pores within the membranes cross section structure. The water flux after BSA flux was still higher than the one before BSA, thereby SBA-16-COOH addition resulted in better antifouling properties. In terms of BSA rejection, the nanocomposite SBA-16-COOH-based membranes outperform the pristine PSf membrane with rejection values up to 98.9%. The water contact angle confirmed the enhanced hydrophilicity of the membranes’ surface due to COOH functional groups of the nanomaterials which led to a higher permeability and an enhanced fouling resistance.

聚砜超滤膜是通过新型的纳米多孔SBA-16-COOH在膜制备过程中通过相转化进行改性的。在2 bar下测量纯净水通量和牛血清白蛋白（BSA，作为污垢）的通量，并分析膜的防污性能。SBA-16-COOH添加量达到2 wt％后，膜显示出更高的水通量，此后通量略有下降，这归因于较高浓度下SBA-16-COOH颗粒的聚集。SBA-16-COOH的添加改善了表面亲水性，并导致了膜横截面结构内细长的指状孔。BSA助焊剂后的水通量仍高于BSA之前的通量，因此SBA-16-COOH的添加导致更好的防污性能。关于BSA拒绝，纳米复合SBA-16-COOH基膜的性能优于原始PSf膜，截留率高达98.9％。水接触角证实了膜表面亲水性的增强是由于纳米材料的COOH官能团导致更高的渗透性和增强的抗污性。