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

Figure 10

(a) Variation of resonance lines of the TEMPO radical (structure shown in the inset), with the UV-Vis irradiation time for the TS aqueous suspension; (b) time course of the TEMPO signal maximum before and during UV-Vis irradiation for TiO₂ (black line) and TS (red line) samples. The initial slope () of the curve was taken as representative parameter to evaluate the initial rate of formation.

(a)

(b)