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

doi:10.1023/A:1012369811887

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 journal › Article › peer-review

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 language	English
Pages (from-to)	247-248
Number of pages	2
Journal	Catalysis Letters
Volume	76
Issue number	3-4
DOIs	https://doi.org/10.1023/A:1012369811887
Publication status	Published - 2001
Externally published	Yes

Bibliographical note

Funding Information:
The Nuclear R&D program of MOST funded this study.

Keywords

Clay
EPR
Gamma-rays
PCE
TiO

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1023/A:1012369811887

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

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.",

keywords = "Clay, EPR, Gamma-rays, PCE, TiO",

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AU - Chung, Hung Ho

AU - Jung, Jinho

AU - Yoon, Jeong Hyo

AU - Lee, Myun Joo

N1 - Funding Information: The Nuclear R&D program of MOST funded this study.

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

KW - Clay

KW - EPR

KW - Gamma-rays

KW - PCE

KW - TiO

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EP - 248

JO - Catalysis Letters

JF - Catalysis Letters

IS - 3-4

ER -

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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