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Study on iodine adsorbents preparation and performance for different TEDA ionic liquids

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Abstract

To further improve the thermal stability of capturing radioactive gaseous iodine in nuclear industrial waste gas, “Ionic liquids (ILs)” was introduced into the field of iodine adsorption. By regulating the aging temperature, aging time and molar ratio of reactants, the amine compound was prepared into ILs, and the micro structure and orthogonal test were studied to obtain the best quality response combination of ILs preparation. The physical properties, thermal stability and iodine adsorption properties of different ILs are tested. The results show that the iodine adsorption efficiency of amine compounds ILs is at the same level as that of activated carbon base composites under the same load conditions, while the thermal stability is improved by 113%, which has important theoretical guiding significance for the improvement of the adsorption properties of the iodine adsorbents under the high temperature conditions.

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Acknowledgements

This research was supported by the “Young Talents Project” of China National Nuclear Corporation No. JY21030603 and “Innovation Team Fund project” of China institute for radiation protection (YC21000603).

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Authors and Affiliations

  1. CNNC Key Laboratory on Radioactive Gas Purification Technology, China Institute for Radiation Protection, Taiyuan, 030006, China

    Xin Li, Zexiang Chen, Xin Chen, Jie Yu, Dangui Qiu, Qian Sun, Dongan Zhi & Yongguo Li

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  1. Xin Li
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  2. Zexiang Chen
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  3. Xin Chen
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  4. Jie Yu
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  8. Yongguo Li
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Correspondence to Yongguo Li.

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Li, X., Chen, Z., Chen, X. et al. Study on iodine adsorbents preparation and performance for different TEDA ionic liquids. J Radioanal Nucl Chem 332, 5023–5034 (2023). https://doi.org/10.1007/s10967-023-09139-1

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  • DOI: https://doi.org/10.1007/s10967-023-09139-1

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