Catalytic ozonation of PCE by clay from tidal flat sediments

Hung H. Chung; Jinho Jung; Jeong H. Yoon; Myun J. Lee

doi:10.1023/A:1014933620087

Catalytic ozonation of PCE by clay from tidal flat sediments

Hung H. Chung, Jinho Jung, Jeong H. Yoon, Myun J. Lee

Research output: Contribution to journal › Article

9 Citations (Scopus)

Abstract

Clay from tidal flat sediments showed an efficient catalytic activity in the decomposition of PCE by ozonation where the thermal treatment of clay enhanced the catalytic activity. No changes in XRD patterns of clays by the thermal treatment were observed, while EPR spectra were significantly changed. The intensity of the EPR signal that arises from natural radiation defect was decreased with increasing thermal treatment temperature, which enhanced the PCE removal efficiency. Contrary to ozonation alone, superoxide radicals were detected from ozonation in the presence of clay. This suggests that the superoxide radicals further increase PCE decomposition.

Original language	English
Pages (from-to)	77-79
Number of pages	3
Journal	Catalysis Letters
Volume	78
Issue number	1-4
DOIs	https://doi.org/10.1023/A:1014933620087
Publication status	Published - 2002 Mar 1
Externally published	Yes

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Keywords

Catalyst
Clay
EPR
Ozonation
PCE

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

Cite this

Chung, H. H., Jung, J., Yoon, J. H., & Lee, M. J. (2002). Catalytic ozonation of PCE by clay from tidal flat sediments. Catalysis Letters, 78(1-4), 77-79. https://doi.org/10.1023/A:1014933620087

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10.1023/A:1014933620087