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Design of Porous Membranes by Liquid Gating Technology
Accounts of Materials Research ( IF 14.0 ) Pub Date : 2021-05-03 , DOI: 10.1021/accountsmr.1c00024 Shuli Wang 1 , Yunmao Zhang 1 , Yuhang Han 1 , Yaqi Hou 1 , Yi Fan 1 , Xu Hou 1, 2, 3
Accounts of Materials Research ( IF 14.0 ) Pub Date : 2021-05-03 , DOI: 10.1021/accountsmr.1c00024 Shuli Wang 1 , Yunmao Zhang 1 , Yuhang Han 1 , Yaqi Hou 1 , Yi Fan 1 , Xu Hou 1, 2, 3
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Porous membranes are playing paramount roles in the areas of wastewater treatment, chemical analysis, energy storage and conversion, flexible devices, and biomedical engineering. Despite their significance in the above fields, the performances of the porous membrane will be weakened due to the inevitable membrane fouling. Solid surfaces or pores of the membranes are easily contaminated or even clogged due to the absorption of small molecules or the accumulation of fine particles, which lower the flux of fluid transport over time, reduce the separation efficiency, shorten the lifetime of the membranes, and increase the operational costs. In addition, the defects in membranes also hinder their applications to some extent. The above-mentioned limitations all arise from the intrinsic properties of the solid surfaces of the membranes. To solve these challenges, liquid gating technology was proposed, which utilizes the capillary-stabilized functional liquid as a pressure-driven, reversible, and reconfigurable gate to fill and seal the pores on demand. Using liquid gating technology, multiphase transportation in the membrane can be modulated with exceptional antifouling and energy-saving manners due to the defect-free molecular-smooth liquid interface. Moreover, the further responsive interface design accelerated the development of liquid gating membranes and their practical applications to a great extent. In recent years, the concept of the liquid gating membrane has become a reality through developing various porous membranes by the rational selection and design of the two essential parts of the composite membranes: the solid porous matrix and the gating liquid. These membranes expand the basic scientific issues of the traditional membranes from the solid–liquid/gas interface to the solid–liquid–liquid/gas interface and bring more possibilities for the applications of porous membranes. With properties and advantages of antifouling, anticorrosion, enhanced transparency, energy-saving, and stability, these porous membranes have shown various applications in multiphase separation, biomedical catheters, chemical detection, mobile valves, microscale flow control, etc.
中文翻译：
液体浇注技术设计多孔膜
多孔膜在废水处理、化学分析、能量存储和转换、柔性设备和生物医学工程领域发挥着至关重要的作用。尽管它们在上述领域具有重要意义，但由于不可避免的膜污染，多孔膜的性能会减弱。膜的固体表面或孔隙容易因小分子的吸附或细颗粒的积累而被污染甚至堵塞，随着时间的推移降低流体传输的通量，降低分离效率，缩短膜的寿命，以及增加运营成本。此外，膜的缺陷也在一定程度上阻碍了其应用。上述限制都源于膜固体表面的固有特性。为了解决这些挑战，提出了液体浇口技术，该技术利用毛细管稳定的功能液体作为压力驱动、可逆和可重构的浇口，按需填充和密封孔隙。使用液体门控技术，由于无缺陷的分子-光滑液体界面，可以以优异的防污和节能方式调节膜中的多相传输。此外，进一步的响应式界面设计在很大程度上加速了液体门控膜的发展及其实际应用。近年来，通过合理选择和设计复合膜的两个基本部分：固体多孔基体和门控液体，开发各种多孔膜，液体门控膜的概念已成为现实。这些膜将传统膜的基础科学问题从固-液/气界面扩展到固-液-液/气界面，为多孔膜的应用带来更多可能。这些多孔膜具有防污、防腐、增强透明、节能、稳定等特性和优点，在多相分离、生物医学导管、化学检测、移动阀、微尺度流量控制等方面显示出广泛的应用。
更新日期：2021-06-25
中文翻译：
液体浇注技术设计多孔膜
多孔膜在废水处理、化学分析、能量存储和转换、柔性设备和生物医学工程领域发挥着至关重要的作用。尽管它们在上述领域具有重要意义，但由于不可避免的膜污染，多孔膜的性能会减弱。膜的固体表面或孔隙容易因小分子的吸附或细颗粒的积累而被污染甚至堵塞，随着时间的推移降低流体传输的通量，降低分离效率，缩短膜的寿命，以及增加运营成本。此外，膜的缺陷也在一定程度上阻碍了其应用。上述限制都源于膜固体表面的固有特性。为了解决这些挑战，提出了液体浇口技术，该技术利用毛细管稳定的功能液体作为压力驱动、可逆和可重构的浇口，按需填充和密封孔隙。使用液体门控技术，由于无缺陷的分子-光滑液体界面，可以以优异的防污和节能方式调节膜中的多相传输。此外，进一步的响应式界面设计在很大程度上加速了液体门控膜的发展及其实际应用。近年来，通过合理选择和设计复合膜的两个基本部分：固体多孔基体和门控液体，开发各种多孔膜，液体门控膜的概念已成为现实。这些膜将传统膜的基础科学问题从固-液/气界面扩展到固-液-液/气界面，为多孔膜的应用带来更多可能。这些多孔膜具有防污、防腐、增强透明、节能、稳定等特性和优点，在多相分离、生物医学导管、化学检测、移动阀、微尺度流量控制等方面显示出广泛的应用。
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