【摘要】 <正>The increasing atmospheric concentration of carbon dioxide（CO₂） urgently demands advanced carbon capture solutions. Postcombustion carbon capture from flue gas（primarily CO₂ and N₂）is pivotal for achieving carbon neutrality, yet the similar kinetic diameters of CO₂ and N₂ make accurate separation difficult using traditional techniques [1,2]. Nanofluidic membranes stand out as advanced technology for gas separation, given their low energy consumption, operation simplicity, compact design, and scalability[3]. Among them, rigid membranes, which have gained significant attention, can distinguish guest molecules by affinity or size differences [4].更多还原