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Two-dimensional material membranes for critical separations
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2020-05-15 , DOI: 10.1039/d0qi00307g Pengchao Liu 1, 2, 3, 4, 5 , Junjun Hou 6, 7, 8, 9, 10 , Yi Zhang 6, 7, 8, 9, 10 , Lianshan Li 6, 7, 8, 9, 10 , Xiaoquan Lu 1, 2, 3, 4, 5 , Zhiyong Tang 6, 7, 8, 9, 10
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2020-05-15 , DOI: 10.1039/d0qi00307g Pengchao Liu 1, 2, 3, 4, 5 , Junjun Hou 6, 7, 8, 9, 10 , Yi Zhang 6, 7, 8, 9, 10 , Lianshan Li 6, 7, 8, 9, 10 , Xiaoquan Lu 1, 2, 3, 4, 5 , Zhiyong Tang 6, 7, 8, 9, 10
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Separation technology is of great importance to the chemical industries which involve many steps of purification. Compared to the traditional thermal-based purification processes such as evaporation and distillation, membrane technology has attracted increasing attention due to its low energy consumption and continuous operation. Two-dimensional (2D) material membranes formed by stacking various kinds of 2D nanosheets, including graphene, graphene oxide (GO), MXenes, layered transition metal dichalcogenides (TMDCs), layered zeolites, 2D metal organic frameworks (MOFs), 2D covalent organic frameworks (COFs), etc., represent a burgeoning class of separation membranes. Owing to their easy fabrication, controllable pore size, that is the stacking space between neighbouring layers, and diverse functionalization, these 2D material membranes show great potential for precise and high-efficiency separation through the synergy of the pore size and surface properties of nanopores or nanochannels. To date, 2D material membranes have been widely used in a broad range of critical separations, including ion separation, mixed organic solvent separation, gas separation, nanofiltration, and chiral molecular separation. In this review, we first summarize the separation mechanism adopted in 2D material membranes, followed by the introduction of the most widely used 2D materials and the synthetic strategies for their single or few layer structures. Finally, we summarize the applications of 2D material membranes in various critical separations, including ion sieving, nanofiltration, gas separation and chiral separation.
中文翻译：
用于关键分离的二维材料膜
分离技术对涉及许多纯化步骤的化学工业至关重要。与传统的基于热的纯化工艺（例如蒸发和蒸馏）相比，膜技术因其低能耗和连续运行而受到越来越多的关注。通过堆叠各种2D纳米片而形成的二维（2D）材料膜，包括石墨烯，氧化石墨烯（GO），MXenes，层状过渡金属二卤化金属（TMDC），层状沸石，2D金属有机骨架（MOF），2D共价有机物框架（COF）等。代表了新兴的一类分离膜。由于其易于制造，可控制的孔径（即相邻层之间的堆叠空间）和各种功能化，这些二维材料膜通过孔径和纳米孔或纳米孔的表面特性的协同作用，显示出精确，高效分离的巨大潜力。纳米通道。迄今为止，二维材料膜已广泛用于各种关键分离中，包括离子分离，混合有机溶剂分离，气体分离，纳米过滤和手性分子分离。在这篇综述中，我们首先总结了二维材料膜所采用的分离机理，然后介绍了最广泛使用的二维材料及其单层或多层结构的合成策略。最后，
更新日期：2020-06-30
中文翻译：
用于关键分离的二维材料膜
分离技术对涉及许多纯化步骤的化学工业至关重要。与传统的基于热的纯化工艺（例如蒸发和蒸馏）相比，膜技术因其低能耗和连续运行而受到越来越多的关注。通过堆叠各种2D纳米片而形成的二维（2D）材料膜，包括石墨烯，氧化石墨烯（GO），MXenes，层状过渡金属二卤化金属（TMDC），层状沸石，2D金属有机骨架（MOF），2D共价有机物框架（COF）等。代表了新兴的一类分离膜。由于其易于制造，可控制的孔径（即相邻层之间的堆叠空间）和各种功能化，这些二维材料膜通过孔径和纳米孔或纳米孔的表面特性的协同作用，显示出精确，高效分离的巨大潜力。纳米通道。迄今为止，二维材料膜已广泛用于各种关键分离中，包括离子分离，混合有机溶剂分离，气体分离，纳米过滤和手性分子分离。在这篇综述中，我们首先总结了二维材料膜所采用的分离机理，然后介绍了最广泛使用的二维材料及其单层或多层结构的合成策略。最后，
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