Abstract
Novel tannic acid-type resin combined with benzimidazole-type anion-exchange resins embedded in high-porous silica beads, named improved tannic acid (ITA)-type resin was synthesized successfully and the adsorption behavior of iodine and iodide species on the synthesized resin have been studied in several types of seawater at a temperature range of 278–318 K, compared with those of some typical resins. We have confirmed that ITA can strongly adsorb iodine and iodide species. From these results, we have proposed that the synthesized ITA is suitable for selective removal of radioactive iodine and iodide species in contaminated seawater containing radioactive nuclides.
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Acknowledgments
This work was partially supported by the Grant-in-Aid for Scientific Research (S) (KAKENHI No. 24226021). The authors would like to thank Mr. Tsuyoshi Tai and Mr. Kohei Matsumoto (Department of Nuclear System Safety Engineering, Graduate School of Engineering, Nagaoka University of Technology) for fruitful discussions and technical support.
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Tachibana, Y., Nogami, M., Nomura, M. et al. Simultaneous removal of various iodine species in aqueous solutions of high salt concentrations using novel functional adsorbents. J Radioanal Nucl Chem 307, 1911–1918 (2016). https://doi.org/10.1007/s10967-015-4441-6
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DOI: https://doi.org/10.1007/s10967-015-4441-6