Concentration-Dependent Adsorption of CsI at the Muscovite–Electrolyte Interface

[Image: see text] The interfacial structure of muscovite in contact with aqueous CsI solutions was measured using surface X-ray diffraction for several CsI concentrations (2–1000 mM). At CsI concentrations up to 200 mM, Cs(+) adsorption is likely hindered by H(3)O(+), as both cations compete for the...

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Autores principales: Brugman, Sander J.T., Townsend, Eleanor R., Smets, Mireille M.H., Accordini, Paolo, Vlieg, Elias
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5942870/
https://www.ncbi.nlm.nih.gov/pubmed/29521510
http://dx.doi.org/10.1021/acs.langmuir.8b00038
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author Brugman, Sander J.T.
Townsend, Eleanor R.
Smets, Mireille M.H.
Accordini, Paolo
Vlieg, Elias
author_facet Brugman, Sander J.T.
Townsend, Eleanor R.
Smets, Mireille M.H.
Accordini, Paolo
Vlieg, Elias
author_sort Brugman, Sander J.T.
collection PubMed
description [Image: see text] The interfacial structure of muscovite in contact with aqueous CsI solutions was measured using surface X-ray diffraction for several CsI concentrations (2–1000 mM). At CsI concentrations up to 200 mM, Cs(+) adsorption is likely hindered by H(3)O(+), as both cations compete for the adsorption site above the muscovite hexagonal cavity. Above this concentration, more Cs(+) adsorbs than is required to compensate the negatively charged muscovite surface, which means that coadsorption of an anion takes place. The I(–) anion does not coadsorb in an ordered manner. Moreover, the hydration ring and water layers do not change significantly as a function of the CsI concentration.
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spelling pubmed-59428702018-05-10 Concentration-Dependent Adsorption of CsI at the Muscovite–Electrolyte Interface Brugman, Sander J.T. Townsend, Eleanor R. Smets, Mireille M.H. Accordini, Paolo Vlieg, Elias Langmuir [Image: see text] The interfacial structure of muscovite in contact with aqueous CsI solutions was measured using surface X-ray diffraction for several CsI concentrations (2–1000 mM). At CsI concentrations up to 200 mM, Cs(+) adsorption is likely hindered by H(3)O(+), as both cations compete for the adsorption site above the muscovite hexagonal cavity. Above this concentration, more Cs(+) adsorbs than is required to compensate the negatively charged muscovite surface, which means that coadsorption of an anion takes place. The I(–) anion does not coadsorb in an ordered manner. Moreover, the hydration ring and water layers do not change significantly as a function of the CsI concentration. American Chemical Society 2018-03-09 2018-04-03 /pmc/articles/PMC5942870/ /pubmed/29521510 http://dx.doi.org/10.1021/acs.langmuir.8b00038 Text en Copyright © 2018 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Brugman, Sander J.T.
Townsend, Eleanor R.
Smets, Mireille M.H.
Accordini, Paolo
Vlieg, Elias
Concentration-Dependent Adsorption of CsI at the Muscovite–Electrolyte Interface
title Concentration-Dependent Adsorption of CsI at the Muscovite–Electrolyte Interface
title_full Concentration-Dependent Adsorption of CsI at the Muscovite–Electrolyte Interface
title_fullStr Concentration-Dependent Adsorption of CsI at the Muscovite–Electrolyte Interface
title_full_unstemmed Concentration-Dependent Adsorption of CsI at the Muscovite–Electrolyte Interface
title_short Concentration-Dependent Adsorption of CsI at the Muscovite–Electrolyte Interface
title_sort concentration-dependent adsorption of csi at the muscovite–electrolyte interface
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5942870/
https://www.ncbi.nlm.nih.gov/pubmed/29521510
http://dx.doi.org/10.1021/acs.langmuir.8b00038
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