Effect of dissolved metal ions on PCE decomposition by gamma-rays

Hung Ho Chung; Jinho Jung; Jeong Ho Yoon; Myun Joo Lee

doi:10.1016/S0045-6535(02)00070-X

Effect of dissolved metal ions on PCE decomposition by gamma-rays

Hung Ho Chung, Jinho Jung, Jeong Ho Yoon, Myun Joo Lee

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

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
Pages (from-to)	977-980
Number of pages	4
Journal	Chemosphere
Volume	47
Issue number	9
DOIs	https://doi.org/10.1016/S0045-6535(02)00070-X
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

Access to Document

10.1016/S0045-6535(02)00070-X

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title = "Effect of dissolved metal ions on PCE decomposition by gamma-rays",

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.",

keywords = "EPR, Gamma-rays, Metal ions, Oxidation, PCE, Water",

author = "Chung, {Hung Ho} and Jinho Jung and Yoon, {Jeong Ho} and Lee, {Myun Joo}",

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T1 - Effect of dissolved metal ions on PCE decomposition by gamma-rays

AU - Chung, Hung Ho

AU - Jung, Jinho

AU - Yoon, Jeong Ho

AU - Lee, Myun Joo

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

KW - EPR

KW - Gamma-rays

KW - Metal ions

KW - Oxidation

KW - PCE

KW - Water

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