Enhanced water permeation through the terahertz-induced phase and diffusion transition in metal–organic framework membranes

Zhu, Zhi; Wang, Lei; Yan, Shaojian; Zhang, Qilin; Yang, Hui

doi:10.1039/d3cp05988j

Phys. Chem. Chem. Phys.

2024

DOI: 10.1039/d3cp05988j

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Enhanced water permeation through the terahertz-induced phase and diffusion transition in metal–organic framework membranes

Zhi Zhu,

Lei Wang,

Shaojian Yan

et al.

Abstract: Freshwater scarcity is a pressing global concern, and water desalination has emerged as a promising solution. Metal-organic framework (MOF) membranes have demonstrated exceptional potential in this regard. However, previous efforts...

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Cited by 3 publications

References 67 publications

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Magnetic field modulation of confined water structure and transport in nanochannel

Yan,

Kong,

Zhu

et al. 2024

Journal of Molecular Liquids

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Magnetic field modulation of confined water structure and transport in nanochannel

Yan,

Kong,

Zhu

et al. 2024

Journal of Molecular Liquids

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Characterizing the Orderliness of Interfacial Water through Stretching Vibrations

Zhu,

Zhou,

et al. 2024

J. Phys. Chem. Lett.

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Spatial orderliness, which is the orderly structure of molecules, differs significantly between interfacial water and bulk water. Understanding this property is essential for various applications in both natural and engineered environments. However, the subnanometer thickness of interfacial water presents challenges for direct and rapid characterization of its structural orderliness. Herein, through molecular dynamics simulations and infrared spectral analysis of interfacial water in a graphene slit pore, we reveal a hyperbolic tangent relationship between the water ordering and its O−H stretching information in the infrared spectrum. Specifically, O−H symmetric stretching dominated in the highly ordered water structure, while a transition to the asymmetric stretching corresponded to an increase in the degree of disorder. Thus, the O−H stretching behavior could serve as a useful and quick assessment of the orderliness of interfacial water. This work provided insights into interfacial water's unique molecular network and structural dynamics and identified the stretching vibrations' key role in its degree of order, providing insight for fields such as nanotechnology, biology, and material science.

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Electrostatic-Field-Induced Collapse of Nanobubbles in Nanochannels

Zhang,

Wang,

Song

et al. 2024

Langmuir

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The adsorbed nanobubbles inside the nanochannels can cause fluid transport blockages, which will obviously degrade the nanodevice performance and reduce the lifetime. However, due to small-scale effects, the removal of nanobubbles is a huge challenge at the nanoscale. Herein, molecular dynamics simulations are carried out to study the effect of the electrostatic field on underwater nitrogen nanobubbles confined in nanochannels. It is found that the nanobubbles will collapse under an appropriate electrostatic field, thereby unblocking the transport of water in the nanochannels. The formation of ordered water structures induced by electrostatic fields plays an important role in the removal of nanobubbles from the nanochannels. Our findings provide a convenient, controllable, and remote way to address the blockage problem of nanobubbles in nanochannels, which may have potential applications in improving the performance of fuel cells.

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Enhanced water permeation through the terahertz-induced phase and diffusion transition in metal–organic framework membranes

Abstract: Freshwater scarcity is a pressing global concern, and water desalination has emerged as a promising solution. Metal-organic framework (MOF) membranes have demonstrated exceptional potential in this regard. However, previous efforts...

Cited by 3 publications

References 67 publications

Magnetic field modulation of confined water structure and transport in nanochannel

Magnetic field modulation of confined water structure and transport in nanochannel

Characterizing the Orderliness of Interfacial Water through Stretching Vibrations

Electrostatic-Field-Induced Collapse of Nanobubbles in Nanochannels

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