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Evaluation of Pure and Ag-Doped Tio2 Films in the Photocatalytic Activity of Phenol
Adriana B. Arau00c3u00bajo, Su00c3u00b4nia M. A. Jorge, Pedro M. Padilha, Dorotu00c3u00a9ia F. Bozano, Gustavo R. Castro, Ariovaldo O. Florentino
Volume 15 Issue 2
Global Journal of Science Frontier Researc
Volume 15 Issue 2
Global Journal of Science Frontier Researc
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.
