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Effect of surface and textural characteristics on uranium adsorption by nanoporous titania

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Abstract

TiO2 solids of different grain size have been prepared by micelle-mediated hydrolysis and a solvothermal method, and characterized by SEM microscopy and N2 adsorption. The effect of the BET surface area/pore volume and the grain size of the solids on the U(VI) adsorption has been investigated by batch-type experiments and evaluated by correlating the textural parameters with the corresponding K d values, which have been found to vary between 450 and 8600 ml g−1. The adsorption of U(VI) by TiO2 is well described by the Freundlich isotherm model and both, the BET surface/pore volume and grain size determine the adsorption efficacy.

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Authors and Affiliations

  1. Department of Chemistry, University of Cyprus, P.O. Box 20537, 1678, Nicosia, Cyprus

    Polyxeni Paschalidou, Ioanna Liatsou, Ioannis Pashalidis & Charis R. Theocharis

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  1. Polyxeni Paschalidou
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  2. Ioanna Liatsou
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  3. Ioannis Pashalidis
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  4. Charis R. Theocharis
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Correspondence to Ioannis Pashalidis.

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Paschalidou, P., Liatsou, I., Pashalidis, I. et al. Effect of surface and textural characteristics on uranium adsorption by nanoporous titania. J Radioanal Nucl Chem 314, 1141–1147 (2017). https://doi.org/10.1007/s10967-017-5475-8

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  • DOI: https://doi.org/10.1007/s10967-017-5475-8

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