引用本文:
Gong Hu LI, Hu Lan MA, Wei Zhu AN. A Proposed Mechanism of Photocatalytic Oxidation of Trichloroethylene in Gas Phase[J]. Chinese Chemical Letters,
2000, 11(1): 31-34.
Citation: Gong Hu LI, Hu Lan MA, Wei Zhu AN. A Proposed Mechanism of Photocatalytic Oxidation of Trichloroethylene in Gas Phase[J]. Chinese Chemical Letters, 2000, 11(1): 31-34.
Citation: Gong Hu LI, Hu Lan MA, Wei Zhu AN. A Proposed Mechanism of Photocatalytic Oxidation of Trichloroethylene in Gas Phase[J]. Chinese Chemical Letters, 2000, 11(1): 31-34.
A Proposed Mechanism of Photocatalytic Oxidation of Trichloroethylene in Gas Phase
摘要:
GC/MS has been used to identify gas phase products and intermediates formed during the gas phase photocatalytic oxidation of trichloroethylene (TCE) on TiO2 with low BET surface area. A new byproduct, oxalyl choloride (ClCOCOCl) was detected together with other byproducts such as COCl2, CHCl3, DCAC and C2HCl5. Firstly the method of perturbation on the reaction system was conducted. Very little amount of water was carried into the feed gas and subsequent changes were observed. The discussion based on the product distribution changes led to a postulated mechanism consisting of two stages.
English
A Proposed Mechanism of Photocatalytic Oxidation of Trichloroethylene in Gas Phase
Abstract:
GC/MS has been used to identify gas phase products and intermediates formed during the gas phase photocatalytic oxidation of trichloroethylene (TCE) on TiO2 with low BET surface area. A new byproduct, oxalyl choloride (ClCOCOCl) was detected together with other byproducts such as COCl2, CHCl3, DCAC and C2HCl5. Firstly the method of perturbation on the reaction system was conducted. Very little amount of water was carried into the feed gas and subsequent changes were observed. The discussion based on the product distribution changes led to a postulated mechanism consisting of two stages.
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Key words:
- Photocatalytic oxidation
- / trichloroethylene
- / product distribution
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