Fenton Process Coupled to Ultrasound and UV Light Irradiation for the Oxidation of a Model Pollutant

Figure 5

AG50 dye degradation varying the initial concentration of the dye by the Fenton process using 37.4 mg/g Fe₂O₃ catalyst in tandem with UV light and ultrasonic irradiation using H₂O₂ in stoichiometric amounts. (●) 0.39 mmol L⁻¹, (◆) 0.27 mmol L⁻¹, (▲) 9.8 × 10⁻² mmol L⁻¹, and (■) 4.6 × 10⁻²mmol L⁻¹.