title: The reaction pathway for the heterogeneous photocatalysis of trichloroethylene in gas phase.
abstract: Trichloroethylene (TCE) has been widely used in industry. It is considered a hazardous and carcinogenic air pollutant. In this investigation, TCE photocatalytic reactions were performed in a packed bed reactor configured as a continuous flow reactor and a FT-IR sample cell used as a batch reactor to determine the intermediates under irradiation by 365 nm UV light. In this study, the intermediates detected during these reactions were phosgene, dichloroacetyl chloride (DCAC), chloroform, hexachloroethane, alcohols, esters, aldehydes, carbon monoxide, and carbon dioxide. The possible reaction mechanisms began with the Cl- subtraction. The Cl radicals then interacted with TCE to form various intermediates and products.
authors.affiliation: Department of Environmental Engineering and Health, Yuanpei Institute of Science and Technology, 306 Yuanpei St., ROC, Hsinchu, Taiwan. khwang@pc.ymit.edu.tw
authors.forename: Kuo-Hua
authors.initials: KH
authors.lastname: Wang
authors.forename: Jih-Mirn
authors.initials: JM
authors.lastname: Jehng
authors.forename: Yung-Hsu
authors.initials: YH
authors.lastname: Hsieh
authors.forename: Chen-Yu
authors.initials: CY
authors.lastname: Chang
mesh_terms: D002273:Carcinogens / Q000737:chemistry*; D002384:Catalysis; D002713:Chlorine / Q000737:chemistry; D005740:Gases; D010777:Photochemistry; D012997:Solvents / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014241:Trichloroethylene / Q000737:chemistry*; D014466:Ultraviolet Rays; D014835:Volatilization
chemical_list: D002273:Carcinogens; D005740:Gases; D012997:Solvents; D014241:Trichloroethylene; D002713:Chlorine