Investigation of the photocatalytic degradation of organochlorine pesticides on a nano-TiO2 coated film.
Talanta
; 72(5): 1667-74, 2007 Jul 31.
Article
en En
| MEDLINE
| ID: mdl-19071814
ABSTRACT
The photocatalytic degradation of organochlorine pesticides including alpha-, beta-, gamma-, delta-hexachlorobenzene (BHC), dicofol and cypermethrin were carried out on a nano-TiO(2) coated films under UV irradiation in the air. The photocatalytic conditions, including the amount of TiO(2), irradiation time and the intensity of light were optimized. The pesticides were most effectively degraded under the condition of 2.24 mg/cm(2) on TiO(2) film and a 400W UV irradiation of high-pressure mercury lamp with a wavelength of 365 nm. A typical organochlorine pesticide, 20 microg alpha-BHC, was dipped onto the TiO(2) film surface and degraded completely within 20 min. In addition, the photocatalytic degradation pathways on the nano-TiO(2) coated film were discussed.
Texto completo:
1
Bases de datos:
MEDLINE
Idioma:
En
Revista:
Talanta
Año:
2007
Tipo del documento:
Article
País de afiliación:
China