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Utilization of Valuable Metals from High Level Waste-Decomposition of Water Using Semiconductor Photocatalytic Method Induced by Gamma Ray-

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Abstract

The technique of radiolytic decomposition of water leading to hydrogen production was demonstrated to explore a new field in the utilization of radioactive platinum group metals recovered from high level radioactive waste (HAW) and radioactivity of HAW. The radiation photocatalytic method is based on the technique to decompose water on platinized semiconductor particles under UV-light irradiation which has been widely investigated to develop an alternative energy source. In this study gamma radiation from Co-60 source was applied to produce hydrogen instead of UV-light and a significant amount of hydrogen evolved from catalyst-water suspension. Our preliminary experiments proved a possibility of converting the energy of radiation ionization into chemical energy (hydrogen) by the radiation photocatalytic method.

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Authors and Affiliations

  1. Power Reactor and Nuclear Fuel Development Corporation, Tokai, Ibaraki, 319-11, Japan

    Y. Wada, K. Kawaguchi & M. Myochin

Authors
  1. Y. Wada
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  2. K. Kawaguchi
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  3. M. Myochin
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Wada, Y., Kawaguchi, K. & Myochin, M. Utilization of Valuable Metals from High Level Waste-Decomposition of Water Using Semiconductor Photocatalytic Method Induced by Gamma Ray-. MRS Online Proceedings Library 353, 1301–1305 (1994). https://doi.org/10.1557/PROC-353-1301

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  • DOI: https://doi.org/10.1557/PROC-353-1301

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