578191.fig.003a
(a)
578191.fig.003b
(b)
578191.fig.003c
(c)
578191.fig.003d
(d)
Figure 3: Absorption and decolorization spectra of WPac (a), WLeat (b), WFlax (c), and WCot (d). Solid line (red): initial spectrum of effluent, ; dotted line (blue): effluent with TiO2 and FeCl3 but without UV-a irradiation, ; solid line (blue): effluent with TiO2, FeCl3 and after UV-a irradiation, ; (●) total decolorization of effluent with TiO2 (2.5 g L−1) and FeCl3 (1.0 mmol L−1) and after UV-a irradiation; (◯) decolorization of effluent as a result of the photocatalytic process in the presence of TiO2 (2.5 g L−1), FeCl3 (1.0 mmol L−1), and after UV-a irradiation.