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Title

Evaluation of Photocatalytic Activity of Fe Doped TiO۲ Thin Film Prepared by sol-gel hot dip-coating

فصلنامه مواد پیشرفته و فرآوری، دوره: 2، شماره: 3
Year: 1393
COI: JR_JMATPR-2-3_006
Language: EnglishView: 41
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Authors

Sanaz Naghibi - Department of Metallurgy and materials engineering, Shahreza Branch, Islamic Azad University, Isfahan, Iran
Shohreh Vahed - Department of Food Science, Shahreza Branch, Islamic Azad University, Isfahan, Iran
Omid Torabi - Department of Materials Engineering, Najafabad Branch, Advanced Materials Research Center, Islamic Azad University, Isfahan, Iran

Abstract:

The application of Fe–TiO۲ photocatalysis using sol–gel method by hot–dipping technique was investigated. Then, the influences of fabrication parameters, molar ratios of Fe to TiO۲, the sol temperature, poly ethylene glycol (PEG) content and the number of dipping cycles on the photocatalytic activity in visible light region were mainly studied. The experimental results revealed the sample with the molar ratios of Fe to TiO۲: ۰.۰۱۵, the sol temperature: ۷۰ °C, PEG content: ۲ wt. % and the number of dipping cycles: ۵ showed the best result. The photodegradation efficiency of this sample after ۲ h visible light irradiation increased up to ۸۰% and no crack was detected on the surface of the thin film. When the sol temperature increased from ۲۵ to ۷۰ ºC (the boiling point of the sol), its viscosity increased due to the existence of PEG via forming cross linkage. This phenomenon caused to change the microstructure and improve in optical properties.

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Naghibi, Sanaz and Vahed, Shohreh and Torabi, Omid,1393,Evaluation of Photocatalytic Activity of Fe Doped TiO۲ Thin Film Prepared by sol-gel hot dip-coating,https://civilica.com/doc/1282691

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Type of center: Azad University
Paper count: 1,518
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