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Influence of Carbonate Ions on Europium Sorption ontoIron-Oxides

Published online by Cambridge University Press:  03 September 2012

T. Fujita  and
M. Tsukamoto
T. Fujita
Affiliation:
Central Research Institute of Electric Power Industry (CRIEPI), 2–11–1, Iwado-Kita, Komae, Tokyo 201, JAPAN
M. Tsukamoto
Affiliation:
Central Research Institute of Electric Power Industry (CRIEPI), 2–11–1, Iwado-Kita, Komae, Tokyo 201, JAPAN
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Abstract

The sorption behavior of europium onto two iron-oxides, goethite andmagnetite, focused on the effect of carbonate species concentration wasinvestigated in 0.01 M NaClO4 solution by the batch method over apH range of 4 to 11. It was found that sorption of europium was enhanced inthe higher concentration solution of carbonate species for both materials.The zeta-potential of goethite in the solutions including sodium bicarbonatewas also measured to estimate the effect of sorbed carbonate species. Ourexperimental results and model calculation suggest that the production ofsurface carboxylic group FeOCOO by the sorption of carbonate species loweredthe zeta-potential and enhanced europium sorption.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 465: Symposium II – Scienfific Basis for Nuclear Waste Management XX , 1996 , 781
Copyright
Copyright © Materials Research Society 1997

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References

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