Coating of perovskite catalysts on polymeric resin with hydrothermal method and phenol removal by photocatalytic method

Advanced oxidation processes are used as an effective option for phenol removal, especially due to their high solubility and low degradability. In the first part of the study, the effect of UV-based homogeneous advanced oxidation processes H2O2, ultraviolet (UV) irradiation, UV/hydrogen peroxide (UV/H2O2) processes on phenol removal efficiency was investigated. In the experiments carried out for the removal of phenol only with H2O2, it was observed that phenol removal was not observed, and when only UV was used, phenol removal increased and reached 52% at the end of 60 minutes. In the experiments where phenol removal was performed by UV/H2O2 process, 84% phenol removal was observed after 60 minutes. In the second part, LaFexCu1-xO3 composite catalysts were synthesized by using different mass ratios (1-0.75-0.50-0.25-0) copper produced by hydrothermal method on the surface of commercial polymeric resin and its effect on phenol removal was investigated. The highest phenol removal was obtained with 68% by using LaFeO3 coated composite catalyst after 60 minutes at a catalyst dosage of 0.30 grams at 25 mg/L. It was determined that the amount of copper added to the composite LaFeO3 did not have a positive effect on phenol removal. In addition, experiments were carried out to determine the effect of H2O2 addition to the photocatalytic system (UV/Catalyst) on phenol removal and it was determined that phenol removal increased by 16%.