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Effects of Bi2O3, Al2O3, PbO on silver tellurite glass for radioactive iodine immobilization

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Abstract

An iodine immobilization matrix, the AgI–Ag2O–TeO2 glass system, was developed. The effects of different additives, i.e., Bi2O3, Al2O3, and PbO, on performance were investigated. In an ambient atmosphere and at 800 °C, the melting of the glass precursor mixture was completed after 1.0 h, without significant loss of the constituent elements of the glass except for aluminum. The loading of iodine in the matrix was approximately 11–15% by weigh, excluding oxygen. The normalized releases of all the elements from the matrix were below the order of 10−1 g/m2, which satisfies US regulation (2 g/m2). Additionally, each additive had a different effect on the glass system, and their effects on element release from the matrix were clarified.

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Acknowledgements

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIP) (NRF-2017M2A8A5015082).

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Authors and Affiliations

  1. Korea Atomic Energy Research Institute, Daedoek-daero 989-111, Yuseong-gu, Daejeon, 34057, Republic of Korea

    Hyun Woo Kang, Ki Rak Lee, Jung-Hoon Choi & Hwan-Seo Park

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  1. Hyun Woo Kang
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  2. Ki Rak Lee
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Correspondence to Hyun Woo Kang.

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Kang, H.W., Lee, K.R., Choi, JH. et al. Effects of Bi2O3, Al2O3, PbO on silver tellurite glass for radioactive iodine immobilization. J Radioanal Nucl Chem 326, 1351–1359 (2020). https://doi.org/10.1007/s10967-020-07421-0

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  • DOI: https://doi.org/10.1007/s10967-020-07421-0

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