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Sorption and desorption of Co(II) on montmorillonite in presence and absence of fulvic acid

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Abstract

Sorption and desorption of Co(II) on montmorillonite under ambient conditions as a function of pH, ionic strength and fulvic acid are studied by batch technique. The results indicate that the sorption of Co(II) is dependent on pH, and ionic strength. The sorption-desorption hysteresis is found in the desorption tests. Surface complexation is considered as the main sorption mechanism of Co(II) on montmorillonite. The presence of fulvic acid (FA) enhances the sorption of Co(II) on montmorillonite. Montmorillonite is considered as a promising candidate for the solidification and pre-concentration of Co(II) from large volume of solutions.

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Authors and Affiliations

  1. School of Chemical Engineering, Shandong University of Technology, 255049, Zibo, Shandong, P.R. China

    Lei Chen, Xianjin Yu & Zengdian Zhao

  2. China Institute of Atomic Energy, P.O.Box 275-24, 102413, Beijing, P.R. China

    Jingshun Pan

Authors
  1. Lei Chen
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  2. Xianjin Yu
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  3. Zengdian Zhao
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  4. Jingshun Pan
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Correspondence to Lei Chen.

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Chen, L., Yu, X., Zhao, Z. et al. Sorption and desorption of Co(II) on montmorillonite in presence and absence of fulvic acid. J Radioanal Nucl Chem 275, 209–216 (2008). https://doi.org/10.1007/s10967-007-6990-9

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  • DOI: https://doi.org/10.1007/s10967-007-6990-9

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