Determination of ·OH generated in copper ion catalyzed Fenton reaction by terephthalate
Creators
- 1. Beijing Univ. (China). Dept. of Technical Physics
Description
The effect of dose rate on the radiation chemical yield of hydroxy terephthalate (HOTA) in the radiolysis of aerated terephthalate (TA) aqueous solution has been investigated, and the generation of ·OH by copper ion catalyzed Fenton reaction has been evaluated with the help of TA. No significant difference in the G(HOTA) was observed at dose rate ranging from 8.2 x 10-3 to 1.6 Gy s-1. The presence of Cu2+ at concentration less than 1/10 of [TA] lowers the G(HOTA) to 0.53, however G(HOTA) does not change with [Cu2+] added. As indicated by the formation of HOTA, the '·OH' generated by the Fenton-type reaction catalyzed by copper ion is different from that generated radiolytic, the former is rather localized and therefore difficult to be scavenged by TA
Additional details
Publishing Information
- Journal Title
- Journal of Radiation Research and Radiation Processing
- Journal Volume
- 16
- Journal Issue
- 4
- Journal Page Range
- p. 193-197
- ISSN
- 1000-3436
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 30049338
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Descriptors DEI
- CATALYSIS; CHEMICAL REACTION YIELD; CHEMICAL REACTIONS; COPPER COMPOUNDS; DOSE RATES; DOSEMETERS; GAMMA RADIATION; HYDROXYL RADICALS; RADIOLYSIS; TEREPHTHALIC ACID
- Descriptors DEC
- CARBOXYLIC ACIDS; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; DECOMPOSITION; DICARBOXYLIC ACIDS; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; MEASURING INSTRUMENTS; ORGANIC ACIDS; ORGANIC COMPOUNDS; RADIATION EFFECTS; RADIATIONS; RADICALS; TRANSITION ELEMENT COMPOUNDS; YIELDS