The configuration of thin film composite (TFC) in the form of hollow fiber is desired for gas separation membranes to achieve better gas permeation and higher packing density. In this work, we developed and tested TFC hollow fiber membranes with a defect-free, ultrathin (200 nm) hybrid facilitated transport selective layer consisting of three phases, i.e., a host polymeric matrix with fixed-site carriers, a 2D inorganic filler, and, a CO₂-philic mobile carrier. The effect of lateral size of graphene oxide (GO)-based fillers on CO₂ permeation were studied in detail, and the modified size-optimized porous GO (pGO) fillers were found to enhance CO₂ permeation at a very low loading of 0.2 wt%. The optimized hybrid materials were then combined with selected mobile carriers, which interact with CO₂ reversibly to form carbonate/carbene-CO₂ adduct to further enhance the CO₂ permeation performance. The resulting hybrid facilitated transport membranes with mobile carriers showcase a CO₂ permeance of up to 825 GPU with a CO₂/N₂ separation factor of 31 and a CO₂/CH₄ of 20. These membranes also exhibit increased resistance to carrier saturation phenomena typical of facilitated transport membranes, showing potential for CO₂ separation applications also at elevated pressures.

对于气体分离膜，期望中空纤维形式的薄膜复合材料（TFC）的构型以实现更好的气体渗透和更高的堆积密度。在这项工作中，我们开发并测试了具有无缺陷，超薄（200 nm）杂化促进传输选择层的TFC中空纤维膜，该层由三相组成，即具有固定位点载体的主体聚合物基质，2D无机填料，以及亲CO _2的移动运营商。详细研究了氧化石墨烯（GO）基填料的横向尺寸对CO ₂渗透的影响，发现改性的尺寸优化的多孔GO（pGO）填料可增强CO _2。在0.2 wt％的极低负载下渗透。然后将优化的杂化材料与选定的移动载体结合，这些移动载体与CO ₂可逆地相互作用，形成碳酸盐/卡宾-CO ₂加合物，从而进一步提高了CO _2的渗透性能。所得的带有移动载体的混合促进运输膜展示了高达825 GPU的CO ₂渗透率，CO ₂ / N ₂分离系数为31，CO ₂ / CH ₄为20。这些膜还表现出对载体饱和现象的增强抵抗力典型的促进转运膜，显示出潜在的CO ₂ 分离应用也在高压下进行。