Abstract
Anatase and bentonite were treated by gamma rays in various conditions, and the change of the catalysts was characterized by electron paramagnetic resonance spectroscopy. Anatase gave four peaks with g∥=1.951 g⊥=1.973, g=1.992 and 2.005. The height of the four peaks was directly proportional to the efficiency of hydroxyl radical production, and anatase treated by gamma rays in alkaline condition showed the most efficient production. Bentonite gave a peak with g=2.005. In contrast to anatase, the peak height was inversely proportional to the efficiency of hydroxyl radical production, and non-treated bentonite was the most efficient catalyst. Furthermore, the efficiency of hydroxyl radical production of the catalysts significantly influenced the decomposition of trichloroethylene and perchloroethylene by gamma rays.
| Original language | English |
|---|---|
| Pages (from-to) | 3359-3363 |
| Number of pages | 5 |
| Journal | Water Research |
| Volume | 36 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2002 Jul 1 |
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Keywords
- Anatase
- Bentonite
- EPR
- Gamma rays
- Hydroxyl radicals
- PCE
- TCE
ASJC Scopus subject areas
- Earth-Surface Processes
Cite this
EPR investigation on the efficiency of hydroxyl radical production of gamma-irradiated anatase and bentonite. / Jung, Jinho; Lee, Myun J.
In: Water Research, Vol. 36, No. 13, 01.07.2002, p. 3359-3363.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - EPR investigation on the efficiency of hydroxyl radical production of gamma-irradiated anatase and bentonite
AU - Jung, Jinho
AU - Lee, Myun J.
PY - 2002/7/1
Y1 - 2002/7/1
N2 - Anatase and bentonite were treated by gamma rays in various conditions, and the change of the catalysts was characterized by electron paramagnetic resonance spectroscopy. Anatase gave four peaks with g∥=1.951 g⊥=1.973, g=1.992 and 2.005. The height of the four peaks was directly proportional to the efficiency of hydroxyl radical production, and anatase treated by gamma rays in alkaline condition showed the most efficient production. Bentonite gave a peak with g=2.005. In contrast to anatase, the peak height was inversely proportional to the efficiency of hydroxyl radical production, and non-treated bentonite was the most efficient catalyst. Furthermore, the efficiency of hydroxyl radical production of the catalysts significantly influenced the decomposition of trichloroethylene and perchloroethylene by gamma rays.
AB - Anatase and bentonite were treated by gamma rays in various conditions, and the change of the catalysts was characterized by electron paramagnetic resonance spectroscopy. Anatase gave four peaks with g∥=1.951 g⊥=1.973, g=1.992 and 2.005. The height of the four peaks was directly proportional to the efficiency of hydroxyl radical production, and anatase treated by gamma rays in alkaline condition showed the most efficient production. Bentonite gave a peak with g=2.005. In contrast to anatase, the peak height was inversely proportional to the efficiency of hydroxyl radical production, and non-treated bentonite was the most efficient catalyst. Furthermore, the efficiency of hydroxyl radical production of the catalysts significantly influenced the decomposition of trichloroethylene and perchloroethylene by gamma rays.
KW - Anatase
KW - Bentonite
KW - EPR
KW - Gamma rays
KW - Hydroxyl radicals
KW - PCE
KW - TCE
UR - http://www.scopus.com/inward/record.url?scp=0036629556&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036629556&partnerID=8YFLogxK
U2 - 10.1016/S0043-1354(02)00038-6
DO - 10.1016/S0043-1354(02)00038-6
M3 - Article
VL - 36
SP - 3359
EP - 3363
JO - Water Research
JF - Water Research
SN - 0043-1354
IS - 13
ER -