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An adsorption study of 99Tc using nanoscale zero-valent iron supported on D001 resin

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Abstract

Nanoscale zero-valent iron (nZVI) supported on D001 resin (D001-nZVI) was synthesized for adsorption of high solubility and mobility radionuclide 99Tc. Re (VII), a chemical substitute for 99Tc, was utilized in batch experiments to investigate the feasibility and adsorption mechanism toward Tc(VII). Factors (pH, resin dose) affecting Re(VII) adsorption were studied. The high adsorption efficiency of Re(VII) at pH = 3 and the solid-liquid ratio of 20 g/L. X-ray diffraction patterns revealed the reduction of \(\rm{ReO}_4^-\) into ReO2 immobilized in D001-nZVI. Based on the optimum conditions of Re(VII) adsorption, the removal experiments of Tc(VII) were conducted where the adsorption efficiency of Tc(VII) can reach 94%. Column experiments showed that the Thomas model gave a good fit to the adsorption process of Re(VII) and the maximum dynamic adsorption capacity was 0.2910 mg/g.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11675103 and 91226111).

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Authors and Affiliations

  1. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

    Lingxiao Fu, Jianhua Zu, Enxi Gu & Huan Wang

  2. Shanghai Institute of Measurement and Testing Technology, Shanghai, 201203, China

    Linfeng He

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  1. Lingxiao Fu
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  2. Jianhua Zu
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  3. Linfeng He
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  4. Enxi Gu
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  5. Huan Wang
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Correspondence to Jianhua Zu.

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Fu, L., Zu, J., He, L. et al. An adsorption study of 99Tc using nanoscale zero-valent iron supported on D001 resin. Front. Energy 14, 11–17 (2020). https://doi.org/10.1007/s11708-019-0634-y

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  • DOI: https://doi.org/10.1007/s11708-019-0634-y

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