Abstract Hydrophilic poly(vinylidene fluoride) (PVDF) nanocomposite ultrafiltration (UF) membranes with excellent antifouling and antibiofouling characteristics are fabricated by employing polyhexanide coated copper oxide nanoparticles (P–CuO NPs). The presence of P–CuO NPs is played a significant role in altering the PVDF membrane matrix and probed by XRD, FTIR, FESEM and contact angle analysis. The PVDF/P–CuO nanocomposite membranes exhibited an outstanding antifouling performance indicated by the superior pure water flux, effective foulant separation and maximum flux recovery ratio during UF experiments as a result of the formation of the hydrophilic and more porous membrane due to the uniform distribution of P–CuO NPs. Particularly, the PVDF/P–CuO-3 membrane showed higher PWF of 152.5 ± 2.4 lm−2h−1 and porosity of 64.5% whereas the lower contact angle of 52.5°. Further, it showed the higher rejection of 99.5 and 98.4% and the flux recovery ratio of 99.5 and 98.5% respectively for BSA and HA foulants, demonstrated its increased water permeation, foulant separation and antifouling behavior. Further, the decent antibacterial activity is showed by the PVDF/P–CuO nanocomposite membranes with the formation of halo-zone around the membrane when exposed to the bacterial medium demonstrated that, by this process an antibacterial water treatment membrane can be developed by simple phase inversion technique with good membrane stability.

中文翻译：

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用聚己酰胺涂覆的氧化铜纳米粒子定制的亲水性和防污性 PVDF 超滤膜的多功能性

摘要 采用聚己酰胺包覆的氧化铜纳米颗粒 (P-CuO NPs) 制备了具有优异防污和抗生物污损特性的亲水性聚偏二氟乙烯 (PVDF) 纳米复合超滤 (UF) 膜。P-CuO NPs 的存在在改变 PVDF 膜基质方面发挥了重要作用，并通过 XRD、FTIR、FESEM 和接触角分析进行了探测。PVDF/P-CuO 纳米复合膜表现出优异的防污性能，表现出优异的纯水通量、有效的污垢分离和超滤实验期间的最大通量回收率，这是由于分布均匀而形成的亲水性和多孔性膜。 P-CuO NPs。特别是 PVDF/P-CuO-3 膜显示出更高的 PWF 为 152.5 ± 2.4 lm-2h-1，孔隙率为 64。5% 而较低的接触角为 52.5°。此外，它对 BSA 和 HA 污染物显示出更高的截留率，分别为 99.5% 和 98.4%，通量回收率分别为 99.5% 和 98.5%，表明其增加了水渗透、污垢分离和防污性能。此外，PVDF/P-CuO 纳米复合膜显示出良好的抗菌活性，当暴露于细菌介质时，膜周围会形成晕圈，这表明，通过该过程可以通过单相开发抗菌水处理膜。具有良好的膜稳定性的反转技术。污垢分离和防污性能。此外，PVDF/P-CuO 纳米复合膜显示出良好的抗菌活性，当暴露于细菌介质时，膜周围会形成晕圈，这表明，通过该过程可以通过单相开发抗菌水处理膜。具有良好的膜稳定性的反转技术。污垢分离和防污性能。此外，PVDF/P-CuO 纳米复合膜显示出良好的抗菌活性，当暴露于细菌介质时，膜周围会形成晕圈，这表明，通过该过程可以通过单相开发抗菌水处理膜。具有良好的膜稳定性的反转技术。