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<p>Silver-loaded zeolites are potential materials for capturing gaseous radioactive iodine released during nuclear accidents. In this study, three commercially available silver-loaded zeolites were evaluated for gaseous radioactive iodine (<sup>134</sup>I) adsorption using gas chromatography between 25 and 1000&#xa0;°C under inert, oxidizing, and reducing conditions. The setup was validated with <sup>220</sup>Rn as a tracer. All tested zeolites demonstrated complete iodine retention up to 1000&#xa0;°C under both oxidizing and reducing conditions. These results provide experimental insight into the thermal stability and iodine retention behavior of silver-loaded zeolites under simulated severe accident conditions.</p>

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Gaseous radioactive iodine retention on silver-loaded zeolites under varying temperatures and atmospheric conditions

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月26日

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  • H. Zhang,
  • X. Kou,
  • L. Liu,
  • N. Cerboni,
  • K. Tokoi,
  • R. Eichler

摘要

Silver-loaded zeolites are potential materials for capturing gaseous radioactive iodine released during nuclear accidents. In this study, three commercially available silver-loaded zeolites were evaluated for gaseous radioactive iodine (134I) adsorption using gas chromatography between 25 and 1000 °C under inert, oxidizing, and reducing conditions. The setup was validated with 220Rn as a tracer. All tested zeolites demonstrated complete iodine retention up to 1000 °C under both oxidizing and reducing conditions. These results provide experimental insight into the thermal stability and iodine retention behavior of silver-loaded zeolites under simulated severe accident conditions.