Efficacy of the Reactive Oxygen Species Generated by Immobilized TiO₂ in the Photocatalytic Degradation of Diclofenac

Figure 3

Selected absorption spectra of DCF recorded at different reaction times in the presence of (a) TiO₂ and (b) TS. (DCF (solid line), with photoreaction spectra after 2 min (dashed line), 10 min (dotted line), and 120 min (dotted-dashed line)). (c) Photodegradation pathway proposed for DCF in the presence of TiO₂ and TS catalysts with hypothesized carbazole intermediates, shown in square brackets.

(a)

(b)

(c)