Research Article
Fenton Process Coupled to Ultrasound and UV Light Irradiation for the Oxidation of a Model Pollutant
Figure 3
Normalized color removal of AG50 (4 × 10−5 mol L−1) at pH 2 with 37.4 mg/g catalyst annealed at 500°C using 100 mg L−1 of catalyst load by different processes: (⋄) adsorption, (△) UV light only, (○) Us only, (▲) Fenton reaction (F), (■) F + UV light (UV), (●) F + ultrasound (Us), and (◆) F + UV + Us. The insert shows the absorbance spectra during dye degradation: initial (continuous line) and final at 40 min (dashed line) in the F + UV + Us.