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Sorption of inorganic radiocarbon on iron oxides

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Abstract

The sorption of inorganic radiocarbon on goethite, hematite and magnetite was studied as a function of carbon concentration, pH and ionic strength. It was discovered that the sorption of radiocarbon on magnetite was negligible in all studied conditions. The distribution coefficients of radiocarbon on hematite and goethite decreased with increasing pH whereas the ionic strength had only a slight decreasing effect on radiocarbon sorption. The sorption on goethite and hematite was modelled with PhreeqC using a generalized double-layer surface complexation model.

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Acknowledgements

The research leading to these results received funding from the Finnish Research Program on Nuclear Waste Management KYT2018.

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Authors and Affiliations

  1. Department of Chemistry – Radiochemistry, University of Helsinki, P.O.Box 55, 00014, Helsinki, Finland

    Janne Lempinen, Eveliina Muuri, Merja Lusa & Jukka Lehto

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  1. Janne Lempinen
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  2. Eveliina Muuri
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  3. Merja Lusa
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  4. Jukka Lehto
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Correspondence to Jukka Lehto.

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Lempinen, J., Muuri, E., Lusa, M. et al. Sorption of inorganic radiocarbon on iron oxides. J Radioanal Nucl Chem 316, 717–723 (2018). https://doi.org/10.1007/s10967-018-5793-5

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  • DOI: https://doi.org/10.1007/s10967-018-5793-5

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