Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 291: Issue 3
Uranium adsorption by dry and wet immobilized Saccharomyces cerevisiae
Authors:
Xiaoliang Wang School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001 Hunan, China

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Guowen Peng School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001 Hunan, China

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Yan Yang School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001 Hunan, China

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Yanfei Wang School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001 Hunan, China

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Tingting He School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001 Hunan, China

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Pages:
825–830
Online Publication Date:
27 Aug 2011
Publication Date:
01 Mar 2012
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10967-011-1358-6
Keywords:
Dry and wet immobilized Saccharomyces cerevisiae; Adsorption; Uranium
Restricted access

Abstract  

Immobilized Saccharomyces cerevisiae (ISC) was prepared by the sodium alginate–gelatin embedding method after dry cells had been cross-linked by formaldehyde. Adsorption of uranium(VI) by incompletely and completely dry ISC was studied. The results indicated that incompletely dry ISC had greater adsorption capacity for U(VI), with physical adsorption being the primary mechanism, whereas completely dry ISC exhibited much greater rigidity and much smaller volume. Therefore, initial absorption of U(VI) by incompletely dry ISC followed by heating could be compared with glass solidification for disposal of radioactive waste. The influence of solution pH, temperature, and contact time on U(VI) absorption was also studied, with pH being found to be the main influencing factor. The adsorption mechanism of completely dry ISC was explored by scanning electron microscopy (SEM) and Fourier-transform infrared (FTIR) spectroscopy, indicating that the main adsorption mechanism is chemical adsorption.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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