Research Article
Mechanistic Study of Visible-Light-Induced Photodegradation of 4-Chlorophenol by TiO2−xNx with Low Nitrogen Concentration
Figure 7
Normalized concentration profiles showing 4-CP degradation kinetics upon addition of isopropanol under visible irradiation. Inset: DMPO spin-trapping ESR spectrum under visible irradiation in 4-CP/TiO1.979N0.021 aqueous solution. Catalyst loading, 0.5 g L−1; 4-CP, 10 mg L−1; isopropanol, 1 × 10−5 M; the DMPO concentration, 1.6 × 10−2 M.
