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Comparison of uranium extraction from model fresh water on TiO–PAN and NaTiO–PAN composite absorbers

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Abstract

Possibility of uranium extraction on titanium oxide (TiO)–polyacrylonitrile (PAN) and sodium titanate (NaTiO)–PAN composite absorbers prepared from hydrated TiO and NaTiO embedded into a matrix of PAN binder was studied. Both TiO–PAN and NaTiO–PAN absorbers might be advantageous for repeated extraction of uranium from fresh water. Appropriate flow rates were found up to 60 BV h−1 for both the absorbers. Elution of uranium and regeneration of both the absorbers may be accomplished by hydrochloric acid solutions of concentration 0.1 mol L−1 and more. Practical sorption capacity (up to 10 % break-through) from tap water containing 2.3 μg U mL−1 was ~4.6 and ~1.5 mg of uranium per 1 mL of swollen TiO–PAN and NaTiO–PAN absorber, respectively.

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Acknowledgments

Financial support by the Ministry of Industry and Trade of the Czech Republic under contract No. FR-TI3/245 is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 115 19, Prague 1, Czech Republic

    A. Motl, F. Šebesta, J. John, I. Ndiaye, M. Němec & I. Špendlíková

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  1. A. Motl
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  2. F. Šebesta
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  3. J. John
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  4. I. Ndiaye
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  5. M. Němec
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  6. I. Špendlíková
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Correspondence to I. Špendlíková.

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Motl, A., Šebesta, F., John, J. et al. Comparison of uranium extraction from model fresh water on TiO–PAN and NaTiO–PAN composite absorbers. J Radioanal Nucl Chem 298, 2057–2063 (2013). https://doi.org/10.1007/s10967-013-2641-5

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  • DOI: https://doi.org/10.1007/s10967-013-2641-5

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