首页|Lamellar water induced quantized interlayer spacing of nanochannels walls

Lamellar water induced quantized interlayer spacing of nanochannels walls

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The nanoscale confinement is of great important for the industrial applications of molecular sieve,desalination,and also essential in bio-logical transport systems.Massive efforts have been devoted to the influence of restricted spaces on the properties of confined fluids.However,the situation of channel-wall is crucial but attracts less attention and remains unknown.To fundamentally understand the mechanism of channel-walls in nanoconfinement,we investigated the interaction between the counter-force of the liquid and interlamellar spacing of nanochannel walls by considering the effect of both spatial confinement and surface wettability.The results reveal that the nanochannel stables at only a few discrete spacing states when its confinement is within 1.4 nm.The quantized interlayer spacing is attributed to water molecules becoming laminated structures,and the stable states are corresponding to the monolayer,bilayer and trilayer water configurations,respectively.The results can potentially help to understand the characterized interlayers spacing of graphene oxide membrane in water.Our findings are hold great promise in design of ion filtration membrane and artificial water/ion channels.

NanoconfinementQuantized spacingLamellar water layerMD simulationsEntropy force

Yue Zhang、Chenlu Wang、Chunlei Wang、Yingyan Zhang、Junhua Zhao、Ning Wei

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Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology,Jiangnan University,Wuxi,214122,China

Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas,Ministry of Education,Northwest A&F University,Yangling,712100,China

Zhangjiang Lab,Interdisplinary Research Center,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai,201210,China

Key Laboratory of Interfacial Physics and Technology,Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai,201800,China

Mechanical & Autornotive Engineering,School of Engineering,RMIT University,Bundoora,Melbourne,VIC,VIC 3083,Australia

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Key R&D Program of China

1237232712372109119721712023YFB4605101

2024

绿色能源与环境(英文)

绿色能源与环境(英文)

CSTPCD
ISSN:
年,卷(期):2024.9(2)
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