Herein the ZIF‐67, a hydrophilic cobalt‐based zeolitic imidazolate framework is synthesized and incorporated with a poly(vinylidene fluoride) (PVDF) to fabricate hybrid ultrafiltration membranes by phase inversion method. The characteristics of PVDF/ZIF‐67 membranes are examined using different analytical techniques such as Fourier‐transform infrared spectroscopy, X‐ray diffractometer, scanning electron microscope, atomic force microscope, and contact angle analysis. The membrane performance is probed using pure water flux (PWF), bovine serum albumin (BSA), and humic acid (HA) rejection. The maximum water flux of 162.5 Lm2 h−1 with BSA and HA rejection of 97% and 98.2%, respectively, exhibited by 1.5 wt% ZIF‐67. The contact angle value is reduced from 83.5 to 58.6° indicating the increase in hydrophilic nature of PVDF membranes by the addition of ZIF‐67. The presence of ZIF‐67 in the PVDF membrane matrix showed outstanding anti‐bacterial properties against Escherichia coli and Staphylococcus aureus. Overall, the PVDF/ZIF‐67 ultrafiltration membranes demonstrate the potential for water treatment applications.

中文翻译：

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研究采用 ZIF-67 金属有机骨架定制的杂化聚偏二氟乙烯膜的渗透和防污特性的影响

本文合成了ZIF-67，一种亲水性钴基沸石咪唑酯骨架，并与聚偏二氟乙烯（PVDF）结合，通过相转化法制备混合超滤膜。使用不同的分析技术（例如傅里叶变换红外光谱、X 射线衍射仪、扫描电子显微镜、原子力显微镜和接触角分析）检查 PVDF/ZIF-67 膜的特性。使用纯水通量 (PWF)、牛血清白蛋白 (BSA) 和腐殖酸 (HA) 排斥率来探测膜性能。最大水通量162.5 Lm2H−11.5 wt% ZIF-67 的 BSA 和 HA 排斥率分别为 97% 和 98.2%。接触角值从 83.5° 降低至 58.6°，表明添加 ZIF-67 后 PVDF 膜的亲水性增加。 PVDF 膜基质中 ZIF-67 的存在表现出出色的抗菌性能大肠杆菌和金黄色葡萄球菌。总体而言，PVDF/ZIF-67 超滤膜展示了水处理应用的潜力。