Developing high-performance separation membrane with good durability is a highly desired while challenging issue. Herein, we reported the successful fabrication of chemically and mechanically durable superhydrophobic membrane that was prepared by embedding UiO-66 as size-sieving sites within the supramolecular fiber structure of collagen fiber membrane (CFM), followed by the polydimethylsiloxane (PDMS) coating. The as-prepared CFM/UiO-66(12)/PDMS membrane featured capillary effect-enhanced separation flux and homogeneous porous channels guaranteed high separation efficiency. When utilized as double-layer separation membranes, this new type of composite membranes separated various surfactant stabilized water-in-oil microemulsions and nanoemulsions, with the separation efficiency high up to 99.993 % and the flux as high as 973.3 L m− 2 h− 1. Compared with commercial polytetrafluoro ethylene (PTFE) membrane, the advantage of the double-layer CFM/UiO-66(12)/PDMS membranes in separation flux was evident, which exhibited one order of magnitude higher than that of commercial PTFE membrane. The CFM/UiO-66(12)/PDMS membrane was acid-alkali tolerant, UV-aging resistant and reusable for emulsion separation. Notably, the CFM/UiO-66(12)/PDMS membrane was mechanically durable against strong mechanical abrasion, which was still capable of separating diverse water-in-oil emulsions after the abrasion with sandpaper and assembled as double-layer separation membranes. We anticipate that the combination of CFM and metal organic frameworks (MOFs) is an effective strategy for fabricating high-performance separation membrane with high mechanical and chemical durability.

中文翻译：

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胶原纤维膜衍生的化学和机械耐用的超疏水膜，用于高性能乳液分离

开发具有良好耐久性的高性能分离膜是一个非常需要同时具有挑战性的问题。在此，我们报道了通过将 UiO-66 作为尺寸筛分位点嵌入胶原纤维膜 (CFM) 的超分子纤维结构中，然后是聚二甲基硅氧烷 (PDMS) 涂层，成功制备了化学和机械耐用的超疏水膜。所制备的 CFM/UiO-66(12)/PDMS 膜具有毛细管效应增强的分离通量和均匀的多孔通道，保证了高分离效率。用作双层分离膜时，这种新型复合膜可分离各种表面活性剂稳定的油包水微乳和纳米乳，分离效率高达99.993%，通量高达973.3 L m− 2 h− 1. 与商用聚四氟乙烯 (PTFE) 膜相比，双层 CFM/UiO-66(12)/PDMS 膜在分离通量方面的优势明显，比商用 PTFE 膜高一个数量级。CFM/UiO-66(12)/PDMS 膜耐酸碱，抗紫外线老化，可重复用于乳液分离。值得注意的是，CFM/UiO-66(12)/PDMS 膜具有抗强机械磨损的机械耐久性，在用砂纸磨损后仍能够分离各种油包水乳液，并组装为双层分离膜。我们预计 CFM 和金属有机骨架 (MOF) 的结合是制造具有高机械和化学耐久性的高性能分离膜的有效策略。双层CFM/UiO-66(12)/PDMS膜在分离通量方面的优势明显，比商用PTFE膜高一个数量级。CFM/UiO-66(12)/PDMS 膜耐酸碱，抗紫外线老化，可重复用于乳液分离。值得注意的是，CFM/UiO-66(12)/PDMS 膜具有抗强机械磨损的机械耐久性，在用砂纸磨损后仍能够分离各种油包水乳液，并组装为双层分离膜。我们预计 CFM 和金属有机骨架 (MOF) 的结合是制造具有高机械和化学耐久性的高性能分离膜的有效策略。双层CFM/UiO-66(12)/PDMS膜在分离通量方面的优势明显，比商用PTFE膜高一个数量级。CFM/UiO-66(12)/PDMS 膜耐酸碱，抗紫外线老化，可重复用于乳液分离。值得注意的是，CFM/UiO-66(12)/PDMS 膜具有抗强机械磨损的机械耐久性，在用砂纸磨损后仍能够分离各种油包水乳液，并组装为双层分离膜。我们预计 CFM 和金属有机骨架 (MOF) 的结合是制造具有高机械和化学耐久性的高性能分离膜的有效策略。表现出比商用 PTFE 膜高一个数量级。CFM/UiO-66(12)/PDMS 膜耐酸碱，抗紫外线老化，可重复用于乳液分离。值得注意的是，CFM/UiO-66(12)/PDMS 膜具有抗强机械磨损的机械耐久性，在用砂纸磨损后仍能够分离各种油包水乳液，并组装为双层分离膜。我们预计 CFM 和金属有机骨架 (MOF) 的结合是制造具有高机械和化学耐久性的高性能分离膜的有效策略。表现出比商用 PTFE 膜高一个数量级。CFM/UiO-66(12)/PDMS 膜耐酸碱，抗紫外线老化，可重复用于乳液分离。值得注意的是，CFM/UiO-66(12)/PDMS 膜具有抗强机械磨损的机械耐久性，在用砂纸磨损后仍能够分离各种油包水乳液，并组装为双层分离膜。我们预计 CFM 和金属有机骨架 (MOF) 的结合是制造具有高机械和化学耐久性的高性能分离膜的有效策略。CFM/UiO-66(12)/PDMS 膜具有机械耐用性，可抵抗强机械磨损，在用砂纸磨损后仍能分离各种油包水乳液，并组装成双层分离膜。我们预计 CFM 和金属有机骨架 (MOF) 的结合是制造具有高机械和化学耐久性的高性能分离膜的有效策略。CFM/UiO-66(12)/PDMS 膜具有机械耐用性，可抵抗强机械磨损，在用砂纸磨损后仍能分离各种油包水乳液，并组装成双层分离膜。我们预计 CFM 和金属有机骨架 (MOF) 的结合是制造具有高机械和化学耐久性的高性能分离膜的有效策略。