Wetting-Induced Water Promoted Flow on Tunable Liquid–Liquid Interface-Based Nanopore Membrane System,ACS Nano

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Wetting-Induced Water Promoted Flow on Tunable Liquid–Liquid Interface-Based Nanopore Membrane System
ACS Nano ( IF 15.8 ) Pub Date : 2022-06-17 , DOI: 10.1021/acsnano.2c03785
Yadong Wu _{1,

2} , Haoyang Ling _{1,

2} , Yongchao Qian ₁ , Yuhao Hu _{1,

2} , Bo Niu ₁ , Xiangbin Lin _{1,

2} , Xiang-Yu Kong ₁ , Lei Jiang _{1,

2} , Liping Wen _{1,

2}

Affiliation

Membrane separation provides effective methods for solving the global water crisis. Contemporary membrane systems depend on interfacial interactions between liquid and solid membrane matrixes. However, it may lead to a limiting permeate flux due to the large flow resistance at hydrophobic liquid–solid interfaces. Herein, the liquid–liquid interface with improved interface energy is reversibly introduced in membrane systems to boost wetting and reduce transport resistance. A series of interfaces were systematically explored to reveal mechanisms of wetting and boosted flow performances, which are further supported by simulations. Findings of this study highlight that interfacial liquids with lower surface energies, lower viscosities, and higher solubilities can effectively improve water flow without sacrificing rejection performance, achieving by transforming a solid–liquid interface into liquid–liquid interface interaction. It provides a concept to design advanced membrane systems for water purification (e.g., desalination and oil–water separation) and energy conversion processes.

中文翻译：

可调谐液-液界面纳米孔膜系统上的润湿诱导水促进流动

膜分离技术为解决全球水危机提供了有效的方法。现代膜系统依赖于液体和固体膜基质之间的界面相互作用。然而，由于疏水性液-固界面处的大流动阻力，它可能会导致渗透通量受限。在此，将具有改进界面能的液-液界面可逆地引入膜系统中，以提高润湿性并降低传输阻力。系统地探索了一系列界面，以揭示润湿和增强流动性能的机制，并得到模拟的进一步支持。这项研究的结果强调，具有较低表面能、较低粘度和较高溶解度的界面液体可以在不牺牲截留性能的情况下有效改善水流，通过将固液界面转化为液液界面相互作用来实现。它提供了设计先进的水净化膜系统的概念（例如，海水淡化和油水分离）和能量转换过程。

更新日期：2022-06-17

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