Heterogeneous Advanced Photo-Fenton Oxidation of Phenolic Aqueous Solutions over Iron-Containing SBA-15 Catalyst

Abstract

Iron-containing SBA-15 catalysts have been prepared following different synthesis routes, direct synthesis by adjusting pH at 3 and 6 and with post synthesis procedure. Activity and stability of these materials were assessed on the photo-Fenton degradation of phenolic aqueous solutions by H2O2 using near ultraviolet irradiation (254 nm) at room temperature and initial neutral pH. Their catalytic performance was mentioned in terms of phenol and TOC (total organic carbon) conversions. Several complementary techniques, including X-ray, nitrogen sorption isotherms, UV (Ultraviolet) visible, were used to evaluate the final structural and textural properties of calcined Fe-SBA15 materials. These materials show a high activity and stability of iron species.