Effect of humic acids and iron hydroxides deposited on the surface of clay minerals on the 137Cs immobilization

Autor:	S. A. Kobets, A. A. Kosorukov, G. N. Pshinko, V. Ya. Demchenko, V. M. Fedorova
Rok vydání:	2014
Předmět:	chemistry.chemical_compound Aqueous solution Mineral Montmorillonite chemistry Metal ions in aqueous solution Inorganic chemistry Kaolinite Hydroxide Sorption Physical and Theoretical Chemistry Clay minerals complex mixtures
Zdroj:	Radiochemistry. 56:325-331
ISSN:	1608-3288 1066-3622
Popis:	The effect exerted on the relationships of 137Cs sorption by humic acids and iron hydroxides deposited on the surface of clay minerals, montmorillonite and kaolinite, differing in the exchange capacity, was studied. The presence of humic acids and Fe(OH)3 deposited on the mineral surface leads to an increase in the 137Cs sorption in a wide pH range (pH 4–9), suggesting the participation of functional groups of humic acids and ferrinol groups of iron(III) hydroxide in binding of the metal ions. The Na+, K+, and Ca2+ ions, on the contrary, with an increase in their concentration in aqueous solution decrease the immobilization of cesium radionuclides and favor their migration in the environment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5e4dbd81c26bed4e390f198e1c886c35 https://doi.org/10.1134/s1066362214030175 Zobrazit plný text záznamu Full text from SpringerLink