Enviar artigo por via de e-mail Sorption behavior of strontium ions in humic acid solutions
- Autores: Volkov I.V.1, Polyakov E.V.1, Denisov E.I.2, Ioshin A.A.3
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Afiliações:
- Institute of Solid State Chemistry, Ural Branch
- Yeltsin Ural Federal University
- Eksorb Research and Production Enterprise
- Edição: Volume 59, Nº 1 (2017)
- Páginas: 70-78
- Seção: Article
- URL: https://journals.rcsi.science/1066-3622/article/view/223733
- DOI: https://doi.org/10.1134/S106636221701009X
- ID: 223733
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Resumo
As shown by distribution, thermodynamic modeling, and dispersion analysis methods, the ability of freshly precipitated humic acid to take up Sr(II) ions is influenced by energy heterogeneity of its sorption sites, characteristic of both natural and synthetic samples. It is manifested in that the distribution coefficient Kd exceeds 1.9 × 104 mL g–1 at Sr(II) concentrations in solutions lower than 20 μg L–1 but is equal to 1.9 × 103 mL g–1 at Sr(II) concentrations higher than 1 mg L–1. In solutions with ultralow Sr(II) concentrations, humic acids exhibit high affinity for the humate complex Sr(HA) and do not interact with the complex Sr(HA)2.
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Sobre autores
I. Volkov
Institute of Solid State Chemistry, Ural Branch
Email: polyakov@ihim.uran.ru
Rússia, ul. Pervomaiskaya 91, Yekaterinburg, 620990
E. Polyakov
Institute of Solid State Chemistry, Ural Branch
Autor responsável pela correspondência
Email: polyakov@ihim.uran.ru
Rússia, ul. Pervomaiskaya 91, Yekaterinburg, 620990
E. Denisov
Yeltsin Ural Federal University
Email: polyakov@ihim.uran.ru
Rússia, ul. Mira 19, Yekaterinburg, 620002
A. Ioshin
Eksorb Research and Production Enterprise
Email: polyakov@ihim.uran.ru
Rússia, ul. 8 Marta 5, Yekaterinburg, 620014
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