Photocatalytic degradation and reaction pathway studies of chlorinated hydrocarbons in gaseous phase
Year: 2010
Type: article
Abstract: TiO2 was doped with various types of rst row transition metals towards the degradation of
dichloromethane, chloroform, carbon tetrachloride and a mixture of carbon tetrachloride and chloroform.
Zn2+/Fe3+/TiO2 photocatalyst with the ratio of 0.0005: 0.0005: 1 was revealed as the best catalyst in
this study. 41.05% of dichloromethane, 49.45% of chloroform and 37.84% of carbon tetrachloride were
degraded by this catalyst in the presence of UV light (6 W, 354 nm), irradiated for 90 minutes, and oxidized
VOCs gases were analyzed using GC-FID. In this study, the new species of CHCl+2 , CH2Cl+, CCl+2 and
OCl+. CHCl+2 was detected to form from the photocatalytic degradation of chloroform while some new
fragments, such as OCl+, CHCl+2 and CH2Cl+, are observed during the photocatalytic degradation of
carbon tetrachloride.
Source: Scientia Iranica
Authors: Reham Ali, Muhammad Zamir Othman, Wan Azlee Wan Abu Bakar
Institution: Kuwait University
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W1512161877