Biosorption of uranium

The carboxymethyl cellulose microsphere loaded with Al(III) (CMC-Al) has been explored for removal of uranium(VI) from U-containing water. Various factors, including pH, adsorbent dosage and uranium(VI) concentration, were tested. Langmuir and Freundlich isotherms were applied to the adsorption data...

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Bibliographic Details
Published in:	Journal of radioanalytical and nuclear chemistry Vol. 310; no. 2; p. 611
Main Authors:	Wu, Liping, Lin, Xiaoyan, Du, Xinchen, Luo, Xuegang
Format:	Journal Article
Language:	English
Published:	Springer 01-11-2016
Subjects:	Adsorption Cellulose Nuclear energy Nuclear industry Uranium
Online Access:	Get full text
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Summary:	The carboxymethyl cellulose microsphere loaded with Al(III) (CMC-Al) has been explored for removal of uranium(VI) from U-containing water. Various factors, including pH, adsorbent dosage and uranium(VI) concentration, were tested. Langmuir and Freundlich isotherms were applied to the adsorption data. The thermodynamic parameters such as ΔH°, ΔS° and ΔG° were also evaluated. The mechanism of modification and adsorption on CMC-Al were analyzed by SEM, EDX and XPS. Results show Al (III) was loaded on CMC through ion exchange of sodium ion of CMC. The coordination reaction happened during the adsorption process between CMC-Al and uranium(VI).
ISSN:	0236-5731
DOI:	10.1007/s10967-016-4859-5