Liu Yanan, Zhang Zhao, Li Zongmei, Wei Xiaocui, Zhao Fu, Fan Chunyang, Jiang Zhongyi
School of Chemical Engineering and Technology, Collaborative Innovation Center of Ecological Civilization, Hainan University, 570228, Haikou, China.
Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China.
Small Methods. 2023 Nov;7(11):e2300737. doi: 10.1002/smtd.202300737. Epub 2023 Sep 5.
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.
作为解决能源和环境问题的一种极具前景的方法，膜技术因其高能效和环境友好性，在包括水处理、液体分离和气体分离在内的各个领域受到了越来越多的关注。表面偏析是一种在自然界广泛存在的现象，在膜制造中具有不可替代的优势，因为它是一种在膜形成过程中同步修饰膜表面和孔表面的原位方法。同时，随着合成化学和纳米材料的发展，该团队已将表面偏析发展成为一种使用多种表面偏析剂的通用膜制造方法。在这篇综述中，首先简要介绍了表面偏析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，作者重点介绍了表面偏析方法，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。强调了通过表面偏析方法调节膜表面和孔表面物理和化学微环境的策略。介绍了表面偏析膜的代表性应用。最后，突出了当前的挑战和未来的前景。
