A high-quality mixed matrix membrane (MMM) with high flux and separation factor is fostered to enhance ethanol pervaporation. In this study, a fluorinated and defect-free ZIF-8/PDMS membrane was prepared by the covalent bonding among fluoromonomer, ZIF-8 particles and PDMS using a one-pot method. ZIF-8 is first modified with 3-amino-1,2,4-triazole (Atz) to graft –NH₂ groups, and then modified with glycidyl methacrylate (GMA). This was achieved by the amine-epoxide addition reaction (named GZIF-8) to facilitate covalent bonding with methacrylate-functionalized PDMS, where the interfacial compatibility ZIF-8 and PDMS is improved. Moreover, 1H,1H,2H,2H-perfluorooctyl methacrylate (13F) as F-monomer is introduced into the membrane formation process by the polymerization of methacrylate groups among 13F, ZIF-8 and PDMS, where a fluorinated structure with high hydrophobicity and low surface energy is formed. The pervaporation performance for a 5 wt% ethanol solution at 60 °C shows that the resulting MMM has a high separation factor of 9.5 and total flux of 1681 g m⁻² h⁻¹ under the optimized parameters of 3 wt% GZIF-8 loading and 12 wt% 13F amounts.

培养具有高通量和分离因子的高质量混合基质膜 (MMM) 以增强乙醇渗透蒸发。在本研究中，采用一锅法通过含氟单体、ZIF-8 颗粒和 PDMS 之间的共价键合制备氟化且无缺陷的 ZIF-8/PDMS 膜。ZIF-8 首先用 3-氨基-1,2,4-三唑 (Atz) 修饰以接枝 –NH ₂基团，然后用甲基丙烯酸缩水甘油酯（GMA）修饰。这是通过胺-环氧化物加成反应（命名为 GZIF-8）实现的，以促进与甲基丙烯酸酯官能化 PDMS 的共价键合，从而改善 ZIF-8 和 PDMS 的界面相容性。此外，1H,1H,2H,2H-全氟辛基甲基丙烯酸酯 (13F) 作为 F-单体通过 13F、ZIF-8 和 PDMS 之间的甲基丙烯酸酯基团的聚合引入膜形成过程，其中氟化结构具有高疏水性和低形成表面能。5 wt% 乙醇溶液在 60 °C 的渗透蒸发性能表明，在3 wt% GZIF-8 负载和优化参数下，所得 MMM 具有 9.5 的高分离因子和 1681 g m ^-2  h ^-1的总通量和12 wt% 13F 量。