Advanced Membrane Materials for CO2 Capture and Separation

Climate change caused by anthropogenic CO₂ emissions has become a global challenge. The combustion of fossil fuels produces large amounts of CO₂ in flue gas, which are released into the atmosphere. To mitigate CO₂ emissions, it is necessary to capture CO₂ for utilization or sequestration. Membrane-based separation offers an effective approach for CO₂ capture due to its high energy efficiency, small footprint, and simplicity in operation and maintenance. However, advanced membrane material designs are still needed to achieve superior CO₂ separation performance and reduce the cost of carbon capture.

This Special Issue focuses on recent advances in novel and emerging materials for membrane-based carbon capture. Topics include novel membrane materials-such as polymers, metal-organic frameworks, two-dimensional (2D) materials, and mixed-matrix membranes-for various capture schemes, including post-combustion capture, pre-combustion capture, carbon capture from industrial sources, and direct air capture. It also covers techno-economic analyses, as well as the preparation and characterization of thin-film composite membranes and hollow fiber membranes.