Adsorption of sodium iodine at air/water interface
© 2019 Elsevier B.V. The change in surface potential was measured for NaI solutions. The modelled surface charge was then calculated and compared with molecular simulations. It was found that I− was enhanced at the air/water interface more than Na+. The result, which was confirmed by simulations...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | English |
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ELSEVIER
2020
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| Online Access: | http://hdl.handle.net/20.500.11937/79138 |
| _version_ | 1848764005565333504 |
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| author | Nguyen, C.V. Nakahara, H. Shibata, O. Phan, Chi |
| author_facet | Nguyen, C.V. Nakahara, H. Shibata, O. Phan, Chi |
| author_sort | Nguyen, C.V. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 Elsevier B.V.
The change in surface potential was measured for NaI solutions. The modelled surface charge was then calculated and compared with molecular simulations. It was found that I− was enhanced at the air/water interface more than Na+. The result, which was confirmed by simulations, was opposite to the previous observation with NaCl. The trend is also consistent with anionic effects: larger and more polar anions adsorbed stronger at the air/water interface. The theoretical model was applied successfully to describe the changes for both systems, which are positive for NaCl and negative for NaI, respectively. The combined results of the two systems also revealed that the self-ionization of pure water induced a positive surface charge at 16.9 mV. |
| first_indexed | 2025-11-14T11:12:29Z |
| format | Journal Article |
| id | curtin-20.500.11937-79138 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:12:29Z |
| publishDate | 2020 |
| publisher | ELSEVIER |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-791382021-11-08T06:11:30Z Adsorption of sodium iodine at air/water interface Nguyen, C.V. Nakahara, H. Shibata, O. Phan, Chi Science & Technology Physical Sciences Chemistry, Physical Physics, Atomic, Molecular & Chemical Chemistry Physics Sodium iodine Surface potential Surface charge VIBRATIONAL SPECTROSCOPY MOLECULAR-STRUCTURE LIQUID INTERFACES FORCE-FIELD SURFACE WATER DYNAMICS IONS © 2019 Elsevier B.V. The change in surface potential was measured for NaI solutions. The modelled surface charge was then calculated and compared with molecular simulations. It was found that I− was enhanced at the air/water interface more than Na+. The result, which was confirmed by simulations, was opposite to the previous observation with NaCl. The trend is also consistent with anionic effects: larger and more polar anions adsorbed stronger at the air/water interface. The theoretical model was applied successfully to describe the changes for both systems, which are positive for NaCl and negative for NaI, respectively. The combined results of the two systems also revealed that the self-ionization of pure water induced a positive surface charge at 16.9 mV. 2020 Journal Article http://hdl.handle.net/20.500.11937/79138 10.1016/j.molliq.2019.112076 English http://creativecommons.org/licenses/by-nc-nd/4.0/ ELSEVIER fulltext |
| spellingShingle | Science & Technology Physical Sciences Chemistry, Physical Physics, Atomic, Molecular & Chemical Chemistry Physics Sodium iodine Surface potential Surface charge VIBRATIONAL SPECTROSCOPY MOLECULAR-STRUCTURE LIQUID INTERFACES FORCE-FIELD SURFACE WATER DYNAMICS IONS Nguyen, C.V. Nakahara, H. Shibata, O. Phan, Chi Adsorption of sodium iodine at air/water interface |
| title | Adsorption of sodium iodine at air/water interface |
| title_full | Adsorption of sodium iodine at air/water interface |
| title_fullStr | Adsorption of sodium iodine at air/water interface |
| title_full_unstemmed | Adsorption of sodium iodine at air/water interface |
| title_short | Adsorption of sodium iodine at air/water interface |
| title_sort | adsorption of sodium iodine at air/water interface |
| topic | Science & Technology Physical Sciences Chemistry, Physical Physics, Atomic, Molecular & Chemical Chemistry Physics Sodium iodine Surface potential Surface charge VIBRATIONAL SPECTROSCOPY MOLECULAR-STRUCTURE LIQUID INTERFACES FORCE-FIELD SURFACE WATER DYNAMICS IONS |
| url | http://hdl.handle.net/20.500.11937/79138 |