Abstract
This research represents the role of Fe2O3 loading (10–100%) to ceria on the simultaneous oxidative and extractive photo-desulfurization of dibenzothiophene (DBT) in the visible light range. The catalysts were characterized by several known analyses in photocatalysis. The results revealed the FexCeO1-xOy solid solution fabrication with Fe loading up to 20%. While, Fe2O3 segregation was indicated at the higher loading percent. The Fe15Ce85 catalyst exhibited the highest photocatalytic DBT removal of 94.4%. The optimum conditions of 0.15 g catalyst, 2:1 solvent/oil and 2:1 H2O2/S for 2 h were obtained. The Fe15Ce85 higher activity was attributed to the influenced textural and chemical properties induced by Fe/Ce solid solution fabrication. Also, the small band gap and red shift in visible light absorption assigned to the Fe-Ce nanocomposite are reasons for high activity. The desulfurization mechanism was also proposed.
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