Influence of Oxygen Pressure to Photocatalytic Oxidation of Phenol on CuO/TiO₂

Abstract

The photocatalytic oxidation of phenol on the composite copper oxide (II) modified titania photocatalyst (CuO/TiO2) with sunlight irradiation at high oxygen pressure are studied. The photocatalyst characterized by Scanning electron microscopy (SEM), UV-Visible Diffuse Reflectance spectroscopy (UV-DRS), Surface area analysis, and X-ray diffractometry (XRD). The composite photocatalyst based on the anatase includes 3% copper oxide (II). The CuO/TiO2 photocatalytic activity was investigated of phenol oxidation with sunlight irradiation at high oxygen pressure. The photocatalytic oxidation of phenol described Langmuir-Hinshelwood equation and calculated its parameters. With the increasing, the oxygen pressure the rate of phenol photocatalytic oxidation also increases. The quantum yield of the photocatalytic phenol oxidation at high oxygen pressure on the CuO/TiO2 composite photocatalyst are obtained.