Catalytic activity of clay from tidal flat sediments in the decomposition of perchloroethylene by gamma-rays

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

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In the decomposition of perchloroethylene (PCE) by gamma-rays, clay from tidal flat sediments showed an efficient catalytic activity. Moreover, the clay thermally treated at 700 °C in air enhanced the PCE removal efficiency better than that of the well known catalyst Degussa P-25 TiO2. The change of the clay by the thermal treatment was identified by electron paramagnetic resonance (EPR) spectroscopy. The intensity of the signal that arises from the natural radiation defect was decreased with increasing thermal treatment temperature, and inversely dependent on the PCE removal efficiency.

Original languageEnglish
Pages (from-to)247-248
Number of pages2
JournalCatalysis Letters
Volume76
Issue number3-4
DOIs
Publication statusPublished - 2001 Dec 1
Externally publishedYes

Fingerprint

tidal flats
Tetrachloroethylene
Gamma rays
clays
catalytic activity
Catalyst activity
Sediments
Clay
sediments
gamma rays
Decomposition
decomposition
Heat treatment
Paramagnetic resonance
electron paramagnetic resonance
Spectroscopy
Radiation
catalysts
Defects
Catalysts

Keywords

  • Clay
  • EPR
  • Gamma-rays
  • PCE
  • TiO

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Catalytic activity of clay from tidal flat sediments in the decomposition of perchloroethylene by gamma-rays. / Chung, Hung Ho; Jung, Jinho; Yoon, Jeong Hyo; Lee, Myun Joo.

In: Catalysis Letters, Vol. 76, No. 3-4, 01.12.2001, p. 247-248.

Research output: Contribution to journalArticle

Chung, Hung Ho ; Jung, Jinho ; Yoon, Jeong Hyo ; Lee, Myun Joo. / Catalytic activity of clay from tidal flat sediments in the decomposition of perchloroethylene by gamma-rays. In: Catalysis Letters. 2001 ; Vol. 76, No. 3-4. pp. 247-248.
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