Abstract
This study investigates the effect of initial tetrachloroethylene (PCE) concentration, irradiation dose and dissolved metal ions such as Cr3+, Mn2+, Fe3+, Co2+, Ni2+, Cu2+ and Zn2+ on removal of PCE by gamma irradiation. The amount of removed PCE decreased with increase in initial PCE concentration and increased with increase in irradiation dose. PCE removal reached a maximum in the presence of Fe3+, while Cu2+ strongly hindered PCE decomposition. Except for Cu2+, the amount of removed PCE in the presence of metal ions was linearly dependent on the standard reduction potential of the metal ions. The extraordinary inhibition of Cu2+ in PCE removal was caused by the action of Cu2+ as a strong OH scavenger, that was directly confirmed by electron paramagnetic resonance spectroscopy.
Original language | English |
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Pages (from-to) | 977-980 |
Number of pages | 4 |
Journal | Chemosphere |
Volume | 47 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2002 |
Externally published | Yes |
Keywords
- EPR
- Gamma-rays
- Metal ions
- Oxidation
- PCE
- Water
ASJC Scopus subject areas
- Environmental Engineering
- Environmental Chemistry
- Chemistry(all)
- Pollution
- Health, Toxicology and Mutagenesis