Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 253: Issue 2
EPR characterization of carbonate ion effect on TCE and PCE decomposition by gamma-rays
Authors:
J. Yoon Korea Atomic Energy Research Institute 150 Dukjin-dong Yusong-gu, Daejon 305-353 Korea

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J. Jung Korea University Division of Environmental Science and Ecological Engineering 5-1 Anam Dong Sungbuk-ku, Seoul 136-701 Korea

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H. Chung Korea Atomic Energy Research Institute 150 Dukjin-dong Yusong-gu, Daejon 305-353 Korea

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M. Lee Korea Atomic Energy Research Institute 150 Dukjin-dong Yusong-gu, Daejon 305-353 Korea

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Pages:
217–219
Online Publication Date:
01 Nov 2004
Publication Date:
17 Aug 2002
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1019685322608
Restricted access

Abstract  

Carbonate ions significantly inhibit the decomposition of TCE (trichloroethylene) and PCE (perchloroethylene) by gamma-rays. The inhibition effect is larger in the case of TCE than PCE due to a greater dependence of TCE decomposition on hydroxyl radicals. The inhibition effect of carbonate ions was characterized by an EPR/spin-trapping technique. The intensity of DMPO-OH adduct signal decreased as the carbonate ion concentration increased and the percent of signal reduction was linearly proportional to the logarithm of carbonate ion concentration. This directly proves that the carbonate ions inhibit the decomposition of TCE and PCE by scavenging hydroxyl radicals.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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