| Autor: |
Pshinko, G. N., Puzyrnaya, L. N., Shunkov, V. S., Kosorukov, A. A., Demchenko, V. Ya. |
| Předmět: |
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| Zdroj: |
Radiochemistry; Jul2018, Vol. 60 Issue 4, p395-399, 5p |
| Abstrakt: |
Sorption of radiocesium from aqueous media with zinc-aluminum layered double hydroxide intercalated with copper(II) hexacyanoferrate (Zn/Al-CuFeCN) was studied. The highest 137Cs distribution coefficients (790-850 cm3 g-1) on this sorbent are reached at initial pH in the range 5.0-9.0 (pH after sorption 6.8-7.3). The limiting value of the Cs+ adsorption onto Zn/Al-CuFeCN, calculated from the Langmuir equation, is 64.1 mg g-1. At a concentration of up to 100 mg dm-3, Na+ ions do not noticeably affect the Cs+ sorption onto Zn/Al-CuFeCN, whereas the K+ and Ca2+ ions slightly (by 5-10%) decrease the degree of the Cs+ removal. The sorbent shows high selectivity (99.8%) in decontamination of natural water. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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