| DOI | Trouver le DOI : https://doi.org/10.1016/j.cemconcomp.2010.10.011 |
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| Auteur | Rechercher : Beaudoin, J.J.1; Rechercher : Patarachao, B.1; Rechercher : Raki, L.1; Rechercher : Alizadeh, R.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut de recherche en construction du CNRC
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| Format | Texte, Article |
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| Sujet | Adsorption desorption isotherms; Calcium silicate hydrate; Descriptors; Freundlich; Langmuirs; Methylene Blue; Nanostructural characteristics; Non-linear; Regression method; Sorption models; UV-vis spectra; UV-vis spectroscopy; Adsorption; Desorption; Dyes; Hydrates; Hydration; Nanostructures; Silicate minerals; Ultraviolet spectroscopy; Calcium silicate |
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| Résumé | The adsorption of methylene blue (MB) on C-S-H surfaces (C/S ratios 0.60-1.80) and its dependence on C-S-H nanostructure was investigated. UV-VIS spectroscopy was used to obtain the adsorption-desorption isotherms at 23 °C, 35 °C and 50 °C. The character of the UV-VIS spectra and the nature of the C-S-H-MB interaction are discussed. Several sorption models including those due to Langmuir, Harkins-Jura, Halsey, Henderson, and Freundlich are fitted to the data using a non-linear multiple-regression method. Factors influencing the sorption of MB by C-S-H are discussed. The results demonstrated that the adsorption of MB molecules on C-S-H strongly depends on the nanostructural characteristics of C-S-H. © 2010 Published by Elsevier Ltd. All rights reserved. |
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| Date de publication | 2011 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21271437 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 29fbc8a0-b8b1-4b5e-a889-1913d87e8c85 |
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| Enregistrement créé | 2014-03-24 |
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| Enregistrement modifié | 2020-04-21 |
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