Radiation-induced catalytic reduction of chromium(VI) in aqueous solution containing TiO $_{2}$ , Al $_{2}$ O $_{3}$ or SiO $_{2}$ fine particles

Nagaishi, Ryuji ; Yoshida, Zenko; Yamada, Reiji; Hatano, Yoshihiko

Reduction of chromium(VI) in aqueous neutral or basic solution was promoted by -ray irradiation in the presence of oxide particles such as TiO $_{2}$ , Al $_{2}$ O $_{3}$ or SiO $_{2}$ . The oxide particles behaved as a catalyst, and the efficiency of the Cr(VI) reduction increased with an increase of the irradiation dose irrespective of the initial Cr(VI) concentration. The insoluble Cr(III) oxide formed through the Cr(VI) reduction also acted as the catalyst.

Language	:	English
Journal	:	Radiation Physics and Chemistry
Volume	:	75
Number	:	9
Pages	:	p.1051 - 1054
Publication Year/Month	:	2006/09
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Paper URL	:	https://doi.org/10.1016/j.radphyschem.2006.01.005
DOI for research data	:
Keywords	:	no keyword
Research Facility	:	コバルト60照射施設
Press Release	:
Article of JAEA R&D Review	:	Towards Treatment of Toxic Materials and Utilization of Radioactive Waste; A Novel Method for Non-Toxic Treatment of Cr (VI) Wastes by Using Ionizing Radiation[/]
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Registration No. : AA20060040
JAEA Abstracts No. : 34001123
Paper Submission No. : 1276

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Radiation-induced catalytic reduction of chromium(VI) in aqueous solution containing TiO, AlO or SiO fine particles

Radiation-induced catalytic reduction of chromium(VI) in aqueous solution containing TiO $_{2}$ , Al $_{2}$ O $_{3}$ or SiO $_{2}$ fine particles