Nanofluidic transport governed by the liquid/vapour interface
Liquid/vapour interfaces govern the behaviour of a wide range of systems but remain poorly understood, leaving ample margin for the exploitation of intriguing functionalities for applications. Here, we systematically investigate the role of liquid/vapour interfaces in the transport of water across a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | en_US |
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Nature Publishing Group
2015
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| Online Access: | http://hdl.handle.net/1721.1/99474 https://orcid.org/0000-0003-0588-9286 |
| _version_ | 1826216871586693120 |
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| author | Lee, Jongho Laoui, Tahar Karnik, Rohit |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Lee, Jongho Laoui, Tahar Karnik, Rohit |
| author_sort | Lee, Jongho |
| collection | MIT |
| description | Liquid/vapour interfaces govern the behaviour of a wide range of systems but remain poorly understood, leaving ample margin for the exploitation of intriguing functionalities for applications. Here, we systematically investigate the role of liquid/vapour interfaces in the transport of water across apposing liquid menisci in osmosis membranes comprising short hydrophobic nanopores that separate two fluid reservoirs. We show experimentally that mass transport is limited by molecular reflection from the liquid/vapour interface below a certain length scale, which depends on the transmission probability of water molecules across the nanopores and on the condensation probability of a water molecule incident on the liquid surface. This fundamental yet elusive condensation property of water is measured under near-equilibrium conditions and found to decrease from 0.36 ± 0.21 at 30 °C to 0.18 ± 0.09 at 60 °C. These findings define the regime in which liquid/vapour interfaces govern nanofluidic transport and have implications for understanding mass transport in nanofluidic devices, droplets and bubbles, biological components and porous media involving liquid/vapour interfaces. |
| first_indexed | 2024-09-23T16:54:46Z |
| format | Article |
| id | mit-1721.1/99474 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:54:46Z |
| publishDate | 2015 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/994742022-10-03T09:04:41Z Nanofluidic transport governed by the liquid/vapour interface Lee, Jongho Laoui, Tahar Karnik, Rohit Massachusetts Institute of Technology. Department of Mechanical Engineering Lee, Jongho Karnik, Rohit Liquid/vapour interfaces govern the behaviour of a wide range of systems but remain poorly understood, leaving ample margin for the exploitation of intriguing functionalities for applications. Here, we systematically investigate the role of liquid/vapour interfaces in the transport of water across apposing liquid menisci in osmosis membranes comprising short hydrophobic nanopores that separate two fluid reservoirs. We show experimentally that mass transport is limited by molecular reflection from the liquid/vapour interface below a certain length scale, which depends on the transmission probability of water molecules across the nanopores and on the condensation probability of a water molecule incident on the liquid surface. This fundamental yet elusive condensation property of water is measured under near-equilibrium conditions and found to decrease from 0.36 ± 0.21 at 30 °C to 0.18 ± 0.09 at 60 °C. These findings define the regime in which liquid/vapour interfaces govern nanofluidic transport and have implications for understanding mass transport in nanofluidic devices, droplets and bubbles, biological components and porous media involving liquid/vapour interfaces. Center for Clean Water and Clean Energy at MIT and KFUPM (Project R10-CW-09) 2015-10-27T16:14:22Z 2015-10-27T16:14:22Z 2014-03 2013-09 Article http://purl.org/eprint/type/JournalArticle 1748-3387 1748-3395 http://hdl.handle.net/1721.1/99474 Lee, Jongho, Tahar Laoui, and Rohit Karnik. “Nanofluidic Transport Governed by the Liquid/vapour Interface.” Nature Nanotechnology 9, no. 4 (March 16, 2014): 317–323. https://orcid.org/0000-0003-0588-9286 en_US http://dx.doi.org/10.1038/nnano.2014.28 Nature Nanotechnology Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Nature Publishing Group Prof. Karnik via Angie Locknar |
| spellingShingle | Lee, Jongho Laoui, Tahar Karnik, Rohit Nanofluidic transport governed by the liquid/vapour interface |
| title | Nanofluidic transport governed by the liquid/vapour interface |
| title_full | Nanofluidic transport governed by the liquid/vapour interface |
| title_fullStr | Nanofluidic transport governed by the liquid/vapour interface |
| title_full_unstemmed | Nanofluidic transport governed by the liquid/vapour interface |
| title_short | Nanofluidic transport governed by the liquid/vapour interface |
| title_sort | nanofluidic transport governed by the liquid vapour interface |
| url | http://hdl.handle.net/1721.1/99474 https://orcid.org/0000-0003-0588-9286 |
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