Mixed matrix membranes (MMMs) have shown remarkable progress in the development of high-performance membranes for gas separation. These membranes combine the advantageous properties of both organic polymers and highly selective inorganic fillers. Developments are in process for synthesis and modification of fillers to promote the separation performance. Ionic liquids (ILs) are an emerging class of solvents having high CO₂ solubility. In this study, amine based RTIL 3-(trimethoxysilyl) propan-1-aminium acetate [APTMS][Ac] was synthesized. Zeolitic imidazolate framework, ZIF-67, was used as inorganic filler due to its shape selective property and appropriate pore size. ZIF-67 was modified by incorporation of RTIL, and subsequently MMMs with Polysulfone (PSf) matrix were prepared. Gas separation data showed that RTIL having –NH₂ group as well as acetate ions combined with ZIF-67 nano porous structure and large surface area improved the separation performance of membranes. Increase in selectivity of three component MMMs by 84% and 90% was observed ranging from 39.02 to 72.06 and 39 to 74.47 for CO₂/CH₄ and CO₂/N₂ respectively in compared with PSf-RTIL blend membranes. RTIL provided facilitation role in gas permeations due to its high CO₂ selective nature.

混合基质膜（MMM）在用于气体分离的高性能膜的开发中已显示出显着进步。这些膜结合了有机聚合物和高选择性无机填料的优点。正在开发合成和改性填料以提高分离性能的方法。离子液体（ILs）是新兴的一类具有高CO ₂的溶剂溶解度。在这项研究中，合成了基于胺的RTIL 3-（三甲氧基甲硅烷基）丙-1-乙酸铵[APTMS] [Ac]。沸石咪唑盐骨架ZIF-67由于其形状选择性能和适当的孔径而被用作无机填料。ZIF-67通过掺入RTIL进行修饰，随后制备了具有聚砜（PSf）基质的MMM。气体分离数据表明，具有–NH ₂基的RTIL以及乙酸根离子结合ZIF-67纳米多孔结构和大表面积提高了膜的分离性能。观察到三组分MMM对CO ₂ / CH ₄和CO ₂ / N _2的选择性分别从39.02至72.06和39至74.47增加，分别为84％和90％。与PSf-RTIL共混膜相比。RTIL由于具有很高的CO ₂选择性，因此在气体渗透中起到了促进作用。