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- W2023643736 abstract "The photooxidation of trichloroethylene (TCE) on TiO2 has been investigated using infrared spectroscopy for kinetic studies of the production of intermediate species and for investigation of the reaction mechanism. Trichloroethylene is oxidized by chemisorbed molecular O2 when TiO2 band gap radiation (hν > 3.1 ± 0.1 eV) is incident. An intermediate species, dichloroacetyl chloride, HCl2CCOCl, was identified. At 300 K, Cl2CO, CO, CO2, HCl, and H2O are final photooxidation products. At 473 K, Cl2CO undergoes a thermal side reaction on TiO2 to produce Cl2CCCl2. Studies in which oxygen-labeled H2O was present indicated no incorporation of the oxygen label into any of the intermediates, showing that the OH• driven oxidation mechanism proposed by others is not operative. At 150 K, TCE blocks TiO2 sites, significantly retarding O2 adsorption and slowing the photooxidation reaction." @default.
- W2023643736 created "2016-06-24" @default.
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- W2023643736 date "1996-01-01" @default.
- W2023643736 modified "2023-10-16" @default.
- W2023643736 title "Mechanism of Photooxidation of Trichloroethylene on TiO<sub>2</sub>: Detection of Intermediates by Infrared Spectroscopy" @default.
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- W2023643736 doi "https://doi.org/10.1021/ja952155q" @default.
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