In this experiment, an ionic liquid (BMIMBF₄) was used to prepare a composite membrane containing ZnO nanoparticles. Our previous study indicated that a composite membrane composed of ZnO and the ionic liquid (BMIMBF₄) showed high CO₂/N₂ separation performance with a GPU of 101 and a selectivity of 42.1. The oxide layer of ZnO nanoparticles with the imidazolium ring of ionic liquid (BMIMBF₄) increased the solubility of CO₂ and acted as a barrier for N₂, leading to an overall improvement in the performance. However, the liquid film was absorbed into support over time and became thickened, leading to instability. In order to solve this problem, a solid polymer composite film was manufactured and investigated as a solution. The polymer PEBAX2533 was used as a polymer matrix to produce a composite membrane capable of showing both high separation performance and long-term stability.

在该实验中，使用离子液体（BMIMBF ₄）制备含有ZnO纳米颗粒的复合膜。我们之前的研究表明，由 ZnO 和离子液体 (BMIMBF ₄ )组成的复合膜显示出高 CO ₂ /N ₂分离性能，GPU 为 101，选择性为 42.1。具有离子液体咪唑环 (BMIMBF ₄ )的 ZnO 纳米颗粒的氧化物层增加了 CO ₂的溶解度并作为 N ₂的屏障，从而导致性能的整体改进。然而，随着时间的推移，液膜被吸收到载体中并变厚，导致不稳定。为了解决这个问题，制造并研究了固体聚合物复合膜作为解决方案。聚合物 PEBAX2533 被用作聚合物基质来生产复合膜，该膜能够同时显示出高分离性能和长期稳定性。