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

Published online by Cambridge University Press:  15 February 2011

Y. Wada ,
K. Kawaguchi  and
M. Myochin
Y. Wada
Affiliation:
Power Reactor and Nuclear Fuel Development Corporation Tokai, Ibaraki, 319–11, Japan
K. Kawaguchi
Affiliation:
Power Reactor and Nuclear Fuel Development Corporation Tokai, Ibaraki, 319–11, Japan
M. Myochin
Affiliation:
Power Reactor and Nuclear Fuel Development Corporation Tokai, Ibaraki, 319–11, Japan
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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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 353: Symposium – Scientific Basis for Nuclear Waste Management XVIII , 1994 , 1301
Copyright
Copyright © Materials Research Society 1995

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References

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