Research Article

Photodegradation of 2,4-Dichlorophenol in Aqueous Systems under Simulated and Natural Sunlight

Figure 5

The dependence of 2,4-DCP relative concentrations decay on the type of used photosensitizer, in the absence of any sensitizer and in the presence of singlet oxygen scavenger, sodium azide ( = 2.4 × 10−4 M, = 2 × 10−5 M, = 1 × 10−1 M, pH = 10.8, air bubbling, and natural sunlight irradiation).