Abstract
Methyl orange dye degradation was investigated under a combined photocatalytic and Fenton based oxidation in the presence of TiO2 and Fe3+ ion. A noble photocatalyst was developed to carry out the combined oxidation by incorporating TiO2 and Fe3+ ion on the natural clay support. The catalyst was characterized by several techniques such as XRD, BET, Diffuse Reflectance UV-Vis and XRF. The oxidation reaction of MeO using the developed catalyst follows the traditional Langmuir-Hinshelwood model. As a result, it was observed that the synergistic effect of Fe3+ immobilization and titanium oxide photo-catalysis results in faster and more efficient degradation of the contaminant as shown by its higher rate compared to the use of TiO2-Pillared Montmorillonite. Efficiency of degradation depends on the concentration of H2O2 and catalyst dosage and although there was Fe released from catalyst in its application, catalyst shows the reusable properties due to similar degradation rate of first and second utilization.
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