| DOI | Resolve DOI: https://doi.org/10.1016/j.cemconcomp.2010.10.011 |
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| Author | Search for: Beaudoin, J.J.1; Search for: Patarachao, B.1; Search for: Raki, L.1; Search for: Alizadeh, R.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Subject | 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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| Abstract | 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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| Publication date | 2011 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21271437 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 29fbc8a0-b8b1-4b5e-a889-1913d87e8c85 |
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| Record created | 2014-03-24 |
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| Record modified | 2020-04-21 |
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