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Sorption of Pu(III-IV) Onto Tio2: A Preliminary Study

Published online by Cambridge University Press:  11 February 2011

M. Olsson ,
H. Nilsson ,
A. M. Jakobsson  and
Y. Albinsson
M. Olsson
Affiliation:
Nuclear Chemistry, Department of Materials and Surface Chemistry, Chalmers University of Technology SE-412 96 Göteborg, Sweden, e-mail: [email protected]
H. Nilsson
Affiliation:
Nuclear Chemistry, Department of Materials and Surface Chemistry, Chalmers University of Technology SE-412 96 Göteborg, Sweden, e-mail: [email protected]
A. M. Jakobsson
Affiliation:
Nuclear Chemistry, Department of Materials and Surface Chemistry, Chalmers University of Technology SE-412 96 Göteborg, Sweden, e-mail: [email protected]
Y. Albinsson
Affiliation:
Nuclear Chemistry, Department of Materials and Surface Chemistry, Chalmers University of Technology SE-412 96 Göteborg, Sweden, e-mail: [email protected]
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Abstract

A preliminary study of the sorption of reduced plutonium (III-IV) onto TiO2 has been done under anoxic conditions at varying pH and ionic strength. The first approach was to study tetravalent Pu, but the sorption decreases with time in this case. This is probably due to disproportionation of Pu(IV) at the TiO2 surface, which then acts as a catalyst. A further observation that supports this explanation is that the sorption of Pu(IV) onto the walls of the experimental equipment is in some cases higher than the sorption of (disproportioned) Pu onto the oxide.

Pu(III) sorption onto the oxide was also investigated and showed similarities with the previously investigated sorption of Pm(III) in a similar system.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 757: Symposium II – Scientific Basis for Nuclear Waste Management XXVI , 2002 , II11.1
Copyright
Copyright © Materials Research Society 2003

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References

Literature

1. Olsson, M., Jacobsson, A-M. and Albinsson, Y., Sorption of Pu(VI) onto TiO2 , submitted to J. Colloid Interface Sci. (2002).Google Scholar
2. Cleveland, J.M., The Chemistry of Plutonium, (Gordon and Breach, Science Publishers, New York, 1970).Google Scholar
3. Weigel, F., Katz, J.J. and Seaborg, G.T., in The Chemistry of the Actinide Elements, Vol. 1, 2nd ed., edited by Katz, J.J., Seaborg, G.T. and Morss, L.R. (Chapman and Hall, New York, 1986) p. 821.Google Scholar
4. Chen, Y., Yi, J., Li, W., Tang, S. and Hu, W., American Chemical Society, Division of Petroleum Chemistry, 42 (3), 562–568 (1997).Google Scholar
5. Gunnarsson, M., Jakobsson, A-M., Ekberg, S., Albinsson, Y. and Ahlberg, E., J. Colloid Interface Sci., 231 (2000).Google Scholar
6. Dzombak, D.A. and Morel, F.M.M., Surface Complexation Modeling (Hydrous Ferric Oxide) (Wiley-Interscience, New York, 1990).Google Scholar
7. OECD Nuclear Energy Agency, Chemical Thermodynamics of Neptunium and Plutonium, Chemical Thermodynamics, Vol. 4 (North-Holland, Amsterdam, 2001).Google Scholar
8. Jakobsson, A-M., Measurement and Modelling using Surface Complexation of Cation (II to VI) Sorption onto Mineral Oxides, thesis (Dept. of Nuclear Chemistry, Chalmers University of Technology, Göteborg, 1999).Google Scholar