title: [UV photolysis mechanism of CCl4 and CHCl3 in water].
abstract: The photolysis mechanism of CCl4 and CHCl3 in water was studied by using transient absorption spectra. The results showed that aqueous CCl4 was dissociated into CCl3 and Cl radicals by 248 nm laser, and CHCl3 was dissociated into CHCl2 and Cl radicals after adding C6H6. The radicals CCl3 and CHCl2 were able to react with O2 to form CCl3O2 and CHCl2O2 respectively, or to form C2Cl6 and C2H2Cl4 without O2. The rate coefficients of some reactions were obtained.
authors.affiliation: Institute of Environmental Science, Fudan University, Shanghai 200433, China.
authors.forename: C
authors.initials: C
authors.lastname: Zhu
authors.forename: Y
authors.initials: Y
authors.lastname: Yu
authors.forename: X
authors.initials: X
authors.lastname: Pan
authors.forename: W
authors.initials: W
authors.lastname: Dong
authors.forename: H
authors.initials: H
authors.lastname: Hou
mesh_terms: D002251:Carbon Tetrachloride / Q000737:chemistry / Q000528:radiation effects*; D002725:Chloroform / Q000737:chemistry / Q000528:radiation effects*; D010782:Photolysis; D014874:Water Pollutants, Chemical / Q000528:radiation effects*
chemical_list: D014874:Water Pollutants, Chemical; D002725:Chloroform; D002251:Carbon Tetrachloride