Surface Segregation Methods toward Molecular Separation Membranes,Small Methods

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Surface Segregation Methods toward Molecular Separation Membranes
Small Methods ( IF 10.7 ) Pub Date : 2023-09-05 , DOI: 10.1002/smtd.202300737
Yanan Liu ₁ , Zhao Zhang ₁ , Zongmei Li ₁ , Xiaocui Wei ₁ , Fu Zhao ₁ , Chunyang Fan ₁ , Zhongyi Jiang _{1,

2}

Affiliation

As a highly promising approach to solving the issues of energy and environment, membrane technology has gained increasing attention in various fields including water treatment, liquid separations, and gas separations, owing to its high energy efficiency and eco-friendliness. Surface segregation, a phenomenon widely found in nature, exhibits irreplaceable advantages in membrane fabrication since it is an in situ method for synchronous modification of membrane and pore surfaces during the membrane forming process. Meanwhile, combined with the development of synthesis chemistry and nanomaterial, the group has developed surface segregation as a versatile membrane fabrication method using diverse surface segregation agents. In this review, the recent breakthroughs in surface segregation methods and their applications in membrane fabrication are first briefly introduced. Then, the surface segregation phenomena and the classification of surface segregation agents are discussed. As the major part of this review, the authors focus on surface segregation methods including free surface segregation, forced surface segregation, synergistic surface segregation, and reaction-enhanced surface segregation. The strategies for regulating the physical and chemical microenvironments of membrane and pore surfaces through the surface segregation method are emphasized. The representative applications of surface segregation membranes are presented. Finally, the current challenges and future perspectives are highlighted.

中文翻译：

分子分离膜的表面分离方法

膜技术作为解决能源和环境问题的一种极具前景的方法，由于其高能源效率和环境友好性，在水处理、液体分离、气体分离等各个领域受到越来越多的关注。表面偏析是自然界中广泛存在的一种现象，它是一种在成膜过程中对膜和孔表面进行同步修饰的原位方法，在制膜方面具有不可替代的优势。同时，结合合成化学和纳米材料的发展，该小组开发了表面隔离作为一种使用多种表面隔离剂的多功能膜制造方法。在这篇综述中，首先简要介绍了表面分离方法的最新突破及其在膜制造中的应用。然后讨论了表面偏析现象和表面偏析剂的分类。作为本综述的主要部分，作者重点关注表面偏析方法，包括自由表面偏析、强制表面偏析、协同表面偏析和反应增强表面偏析。重点介绍了通过表面隔离方法调节膜和孔表面物理和化学微环境的策略。介绍了表面隔离膜的代表性应用。最后，强调了当前的挑战和未来的前景。

更新日期：2023-09-05

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