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Recent advancements in supramolecular macrocycles for two-dimensional membranes for separations
Green Chemistry ( IF 9.3 ) Pub Date : 2023-08-17 , DOI: 10.1039/d3gc01996a
Shi-Qi Cheng 1 , Qian Lin 2 , Shu-Lan Li 2 , Ya-Xiao Guo 2 , Xiao-Le Han 3 , Yue Sun 2 , Yi Liu 1, 2, 4
Green Chemistry ( IF 9.3 ) Pub Date : 2023-08-17 , DOI: 10.1039/d3gc01996a
Shi-Qi Cheng 1 , Qian Lin 2 , Shu-Lan Li 2 , Ya-Xiao Guo 2 , Xiao-Le Han 3 , Yue Sun 2 , Yi Liu 1, 2, 4
Affiliation
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Precise and efficient separation of molecules and ions is important in many fields, including the chemical industry, textiles, and medicine. Two-dimensional (2D) materials with high specific surface areas and atomic thickness are an excellent choice for membrane building blocks. However, stacking nanosheets face-to-face usually prevents the transport of molecules or ions across such 2D membranes, thereby reducing their flux. Supramolecular macrocyclic hosts contain cucurbiturils, cyclodextrins, pillararenes, crown ethers, and calixarenes, which afford macrocyclic cavities with rigid structures that are easy to be functionalized. Thus, it is possible to construct membranes using 2D materials as “beams” and supramolecular macrocyclic compounds as “columns”. This strategy has been applied to overcome challenges related to the permeability–selectivity trade-off. Supramolecular 2D membranes have been widely used in a wide range of critical separations, including water purification, enantiomer separation, ion extraction and separation, and gas separation. This review provides a new perspective to inspire researchers to develop promising 2D supramolecular membranes with high selectivity, mild flux, and appreciable reversibility.
中文翻译：
用于二维分离膜的超分子大环化合物的最新进展
分子和离子的精确有效分离在许多领域都很重要，包括化学工业、纺织和医药。具有高比表面积和原子厚度的二维（2D）材料是膜构建块的绝佳选择。然而，面对面堆叠纳米片通常会阻止分子或离子穿过此类二维膜的传输，从而降低其通量。超分子大环主体包含葫芦脲、环糊精、柱芳烃、冠醚和杯芳烃，它们提供具有易于官能化的刚性结构的大环空腔。因此，可以使用二维材料作为“梁”和超分子大环化合物作为“柱”来构建膜。该策略已用于克服与渗透性-选择性权衡相关的挑战。超分子二维膜已广泛应用于各种关键分离，包括水净化、对映体分离、离子萃取和分离以及气体分离。该综述提供了一个新的视角，激励研究人员开发具有高选择性、温和通量和可观可逆性的有前景的二维超分子膜。
更新日期：2023-08-17
中文翻译：
用于二维分离膜的超分子大环化合物的最新进展
分子和离子的精确有效分离在许多领域都很重要，包括化学工业、纺织和医药。具有高比表面积和原子厚度的二维（2D）材料是膜构建块的绝佳选择。然而，面对面堆叠纳米片通常会阻止分子或离子穿过此类二维膜的传输，从而降低其通量。超分子大环主体包含葫芦脲、环糊精、柱芳烃、冠醚和杯芳烃，它们提供具有易于官能化的刚性结构的大环空腔。因此，可以使用二维材料作为“梁”和超分子大环化合物作为“柱”来构建膜。该策略已用于克服与渗透性-选择性权衡相关的挑战。超分子二维膜已广泛应用于各种关键分离，包括水净化、对映体分离、离子萃取和分离以及气体分离。该综述提供了一个新的视角，激励研究人员开发具有高选择性、温和通量和可观可逆性的有前景的二维超分子膜。
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