Durmaz Elif Nur, Sahin Sevil, Virga Ettore, de Beer Sissi, de Smet Louis C P M, de Vos Wiebe M
Membrane Science and Technology, MESA+ Institute for Nanotechnology, Faculty of Science and Technology, University of Twente, Enschede 7500 AE, The Netherlands.
Laboratory of Organic Chemistry, Wageningen University, 6708 WE Wageningen, The Netherlands.
ACS Appl Polym Mater. 2021 Sep 10;3(9):4347-4374. doi: 10.1021/acsapm.1c00654. Epub 2021 Aug 26.
The global society is in a transition, where dealing with climate change and water scarcity are important challenges. More efficient separations of chemical species are essential to reduce energy consumption and to provide more reliable access to clean water. Here, membranes with advanced functionalities that go beyond standard separation properties can play a key role. This includes relevant functionalities, such as stimuli-responsiveness, fouling control, stability, specific selectivity, sustainability, and antimicrobial activity. Polyelectrolytes and their complexes are an especially promising system to provide advanced membrane functionalities. Here, we have reviewed recent work where advanced membrane properties stem directly from the material properties provided by polyelectrolytes. This work highlights the versatility of polyelectrolyte-based membrane modifications, where polyelectrolytes are not only applied as single layers, including brushes, but also as more complex polyelectrolyte multilayers on both porous membrane supports and dense membranes. Moreover, free-standing membranes can also be produced completely from aqueous polyelectrolyte solutions allowing much more sustainable approaches to membrane fabrication. The Review demonstrates the promise that polyelectrolytes and their complexes hold for next-generation membranes with advanced properties, while it also provides a clear outlook on the future of this promising field.
全球社会正处于转型期，应对气候变化和水资源短缺是重要挑战。更高效地分离化学物质对于降低能源消耗和更可靠地获取清洁水至关重要。在此，具有超越标准分离性能的先进功能的膜可以发挥关键作用。这包括相关功能，如刺激响应性、污垢控制、稳定性、特定选择性、可持续性和抗菌活性。聚电解质及其复合物是提供先进膜功能的特别有前景的体系。在此，我们综述了近期的工作，其中先进的膜性能直接源于聚电解质提供的材料性能。这项工作突出了基于聚电解质的膜修饰的多功能性，其中聚电解质不仅作为单层应用，包括刷状层，还作为多孔膜支撑体和致密膜上更复杂的聚电解质多层膜。此外，独立膜也可以完全由聚电解质水溶液制成，从而实现更具可持续性的膜制造方法。该综述展示了聚电解质及其复合物对于具有先进性能的下一代膜的前景，同时也为这一有前景的领域的未来提供了清晰的展望。
