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Sorption of plutonium in various oxidation states from aqueous solutions on Taunit carbon nanomaterial

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Radiochemistry Aims and scope

Abstract

Sorption of Pu from weakly acidic and weakly alkaline solutions on Taunit carbon nanomaterial was studied. Under these conditions, both polymeric Pu(IV) and ionic Pu(V, VI) species are recovered from freshly prepared solutions. Also, Pu is efficiently sorbed from simulated groundwater after more than 10 months of storage. The Pu sorption in all the forms by carbon nanotubes is rapid and almost quantitative (95 ± 5%) at the sorbent-to-solution ratio of 1 : 80 g ml−1. Plutonium preliminarily sorbed on Taunit can be efficiently immobilized in a magnesium potassium phosphate ceramic whose physicochemical properties meet the requirements of prolonged environmentally safe storage of long-lived radionuclides.

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Authors and Affiliations

  1. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, Moscow, 119991, Russia

    Yu. M. Kulyako, S. A. Perevalov, D. A. Malikov, S. E. Vinokurov & B. F. Myasoedov

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  1. Yu. M. Kulyako
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  2. S. A. Perevalov
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  3. D. A. Malikov
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  4. S. E. Vinokurov
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  5. B. F. Myasoedov
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Correspondence to Yu. M. Kulyako.

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Original Russian Text © Yu.M. Kulyako, S.A. Perevalov, D.A. Malikov, S.E. Vinokurov, B.F. Myasoedov, 2010, published in Radiokhimiya, 2010, Vol. 52, No. 3, pp. 234–237.

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Kulyako, Y.M., Perevalov, S.A., Malikov, D.A. et al. Sorption of plutonium in various oxidation states from aqueous solutions on Taunit carbon nanomaterial. Radiochemistry 52, 276–280 (2010). https://doi.org/10.1134/S1066362210030094

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  • DOI: https://doi.org/10.1134/S1066362210030094

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