Identification and quantification of products formed from the photocatalytic degradation of trichloroethylene vapor on TlO{sub 2} illuminated with near-UV light
- Purdue Univ., West Lafayette, IN (United States)
The objectives of this study were to identify and quantify reaction products from photocatalytic degradation of trichloroethylene (TCE) vapor on the surfaces of anatase titanium dioxide (TiO{sub 2}) immobilized inside a reactor with annular configuration at ambient temperature and pressure. Ten chlorinated organic compounds including phosgene (COCl{sub 2}), 1,2-dichloroethylene (C{sub 2}H{sub 2}Cl{sub 2}), dichloroacetyl chloride (C{sub 2}HCl{sub 3}O), chloroform (CHCl{sub 3}), carbon tetrachloride (CCl{sub 4}), 1,1,2-trichloroethane (C{sub 2}H{sub 3}Cl{sub 3}), 1,1,2,2-tetrachloroethane (C{sub 2}H{sub 2}Cl{sub 4}), tetrachloroethylene (C{sub 2}O{sub 4}), pentachloroethane (C{sub 2}HCl{sub 5}), and hexachloroethane (C{sub 2}Cl{sub 4}) and two inorganic specks HCl and Cl{sub 2} were identified in the photocatalytic reactor effluent. In general, the fraction of TCE going into chlorinated organic products appeared to peak at an oxygen concentration of 150 ppmv and then to decrease at higher oxygen levels. Cl-containing products observed at high oxygen concentrations were predominately the inorganic species HCl and Cl{sub 2}.
- OSTI ID:
- 214661
- Report Number(s):
- CONF-950801-; TRN: 96:000922-0132
- Resource Relation:
- Conference: 210. national meeting of the American Chemical Society (ACS), Chicago, IL (United States), 20-25 Aug 1995; Other Information: PBD: 1995; Related Information: Is Part Of 210th ACS national meeting. Part 1 and 2; PB: 1866 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Direct mass spectrometric studies of the destruction of hazardous wates. 2. Gas-phase photocatalytic oxidation of trichloroethylene over TiO[sub -2]: Products and mechanisms
The Radiation Chemistry of Chloroform