Photocatalytic Degradation of Tri-and Tetrachloroethylene on Porous TiO2 Pellets
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- YAMAZAKI Suzuko
- Department of Chemistry, Faculty of Science, Yamaguchi University
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- ARAKI Kensuke
- Department of Chemistry, Faculty of Science, Yamaguchi University
書誌事項
- タイトル別名
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- Photocatalytic Degradation of Tri- and Tetrachloroethylene on Porous TiO<sub>2</sub> Pellets
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<p>The photo-assisted catalytic degradations of trichloroethylene (TCE) and tetrachloroethylene (PCE) were studied in a tubular photoreactor packed with TiO2 pellets prepared by sol-gel method. The experiments were performed at 32°C in a non-circulating mode. Comparison with the ethylene degradation reveals that TCE and PCE were degraded more efficiently than ethylene. However, only 48% of TCE or 57% of PCE was converted to HCl and CO2 whereas 95% of ethylene was mineralized. Phosgene, CHCl3 and dichloroacetic acid were detected from the photodegradation of TCE while that of PCE yielded phosgene, CCl4 and trichlroacetic acid. Phosgene in the effluent gas stream was completely removed by passing through water. The reaction mechanism to form these chlorinated products is discussed.</p>
収録刊行物
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- Electrochemistry
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Electrochemistry 70 (6), 412-415, 2002-06-05
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詳細情報 詳細情報について
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- CRID
- 1390845702278425216
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- NII論文ID
- 10008573425
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- NII書誌ID
- AN00151637
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- ISSN
- 21862451
- 13443542
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- NDL書誌ID
- 6179856
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用可