Mesoporous LaFeO₃: Synergistic Effect of Adsorption and Visible Light Photo-Fenton Processes for Phenol Removal from Refinery Wastewater

Figure 6

(a) Removal of phenol by adsorption and photo-Fenton reaction using LFO and LFO-RHT catalysts; (b) plots of −ln (C/C1) versus irradiation time; and (c) temporal UV-Vis spectral change of phenol aqueous solution versus irradiation time in the photo-Fenton reaction (test conditions: temperature = 25°C; phenol concentration = 20 mg L^-1; catalyst dosage = 1 g L^-1; H₂O₂ concentration = 10 mM; pH = 5).

(a)

(b)

(c)