MXenes and Other Two-Dimensional Materials for Membrane Gas Separation: Progress, Challenges, and Potential of MXene-Based Membranes
MXenes and Other Two-Dimensional Materials for Membrane Gas Separation: Progress, Challenges, and Potential of MXene-Based Membranes
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DOI：
10.1021/acs.iecr.2c02042
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发表时间：
2022-09
期刊：
影响因子：
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通讯作者：
Ali Pournaghshband Isfahani;Ahmad Arabi Shamsabadi;M. Soroush
中科院分区：
文献类型：
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作者：
Ali Pournaghshband Isfahani;Ahmad Arabi Shamsabadi;M. Soroush
近年来，含有二维材料的气体分离膜受到了极大的关注，因为这些膜表现出了优异的物理、结构和热性能以及高的渗透选择性。通过面内孔(固有缺陷)、面内狭缝状孔或平面到平面层间走廊的气体传输机制的减薄和多样性为气体高效分离提供了显著的筛分能力。二维过渡金属碳化物/氮化物材料MXenes的发现为气体分离膜领域提供了新的机遇，因为它们具有亲水性、丰富的化学成分、高柔韧性和机械强度。本文综述了基于2D材料的气体分离膜的最新进展。主要讨论了MXene基气膜的研究机会，重点介绍了调谐平面内和平面间纳米缝隙的改性方法，解释了通过这些膜的传输的控制机制，并比较了它们与其他2D材料的优缺点。它还讨论了当前的挑战，并提供了这一领域的前景。
Gas separation membranes incorporating two-dimensional (2D) materials have received considerable attention in recent years, as these membranes have shown outstanding physical, structural, and thermal properties and high permeability-selectivity. The reduced thickness and diversity of the gas transport mechanisms through in-plane pores (intrinsic defects), in-plane slitlike pores, or plane-to-plane interlayer galleries provide the membranes with a significant sieving ability for energy-efficient gas separation. The discovery of 2D transition metal carbides/nitrides materials, MXenes, has provided new opportunities in the gas separation membrane area because of their hydrophilicity, rich chemistry, high flexibility, and mechanical strength. This Review puts into perspective recent advances in 2D-material-based gas separation membranes. It discusses research opportunities mainly in MXene-based gas membranes, highlights modification approaches for tuning the in-plane and plane-to-plane nanoslits, explains governing mechanisms of transport through these membranes, and compares their advantages and disadvantages with those of other 2D materials. It also discusses current challenges and provides prospects in this area.