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KMID : 1024520060150030221
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Journal of the Environmental Sciences
2006 Volume.15 No. 3 p.221 ~ p.227
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Oxidative Decomposition of TCE over TiO₂-Supported Metal Oxide Catalysts
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Yang Won-Ho
Kim Moon-Hyeon
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Abstract
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Oxidative TCE decomposition over -supported single and complex metal oxide catalysts has been conducted using a continuous flow type fixed-bed reactor system. Different types of commercial were used for obtaining the supported catalysts via an incipient wetness technique. Among a variety of titanias and metal oxides used, a DT51D would be the respective promising support and active ingredient for the oxidative TCE decomposition. The catalyst gave a significant dependence of the catalytic activity in TCE oxidation reaction on the metal loadings. The use of high contents for preparing catalysts might produce crystallites on the surface of , thereby decreasing catalytic performance in the oxidative decomposition at low reaction temperatures. Supported -based bimetallic oxide systems offered a very useful approach to lower the amounts without any loss in their catalytic activity for the catalytic TCE oxidation and to minimize the formation of Cl-containing organic products in the course of the catalytic reaction.
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KEYWORD
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Catalytic oxidation, Titania, Metal oxides, Trichloroethylene, Chromium oxides, By-products, Complex metal oxides
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