Evaluation of Pure and Ag-Doped Tio2 Films in the Photocatalytic Activity of Phenol

Abstract

Pure TiO2 films modified by the addition of Degussa P25 powder and Ag-doped were synthesized using sol-gel route and immobilized in borosilicate support at different withdrawing rates and dipping time They were characterized by X-ray diffractometry scanning electronic microscopy and high-resolution field-emission gun scanning electronic microscopy Their photocatalytic activities under UV irradiation were examined using phenol The higher activities were achieved through the Ag-doped films deposited with 0 4 mm s-1 and two dipping Approximately 90 of the organic contaminant was photodegradated after 24 h of irradiation