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2006•Basic Sciences Journal of Textile UniversitiesRequires access

Effect of heating temperatures on various properties of TiO_2 thin films prepared by sol—gel method

Bin Gao

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Abstract

TiO_2 thin films were prepared on slide glass substrates by sol—gel method.Surface microstructure and the influences of heating temperatures on verious properties of TiO_2 thin films were investigated by AFM,XRD,UV-VIS spectrophotometer,Wetting angle goniometer.The results indicate that TiO_2 thin films are composed of spherical nanoparticles with mono-disperse size;crystal size,hydrophilicity and photocatalytic of TiO_2 thin films are improving with heating temperature increasing.Crystal of partial TiO_2 changed from anatase to rutile in 600℃,which induced absorb edge of UV moved towards the visible light.

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TiO_2 thin films were prepared on slide glass substrates by sol—gel method.Surface microstructure and the influences of heating temperatures on verious properties of TiO_2 thin films were investigated by AFM,XRD,UV-VIS spectrophotometer,Wetting angle goniometer.The results indicate that TiO_2 thin films are composed of spherical nanoparticles with mono-disperse size;crystal size,hydrophilicity and photocatalytic of TiO_2 thin films are improving with heating temperature increasing.Crystal of partial TiO_2 changed from anatase to rutile in 600℃,which induced absorb edge of UV moved towards the visible light.

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Available abstract

TiO_2 thin films were prepared on slide glass substrates by sol—gel method.Surface microstructure and the influences of heating temperatures on verious properties of TiO_2 thin films were investigated by AFM,XRD,UV-VIS spectrophotometer,Wetting angle goniometer.The results indicate that TiO_2 thin films are composed of spherical nanoparticles with mono-disperse size;crystal size,hydrophilicity and photocatalytic of TiO_2 thin films are improving with heating temperature increasing.Crystal of partial TiO_2 changed from anatase to rutile in 600℃,which induced absorb edge of UV moved towards the visible light.

Key concepts: Materials science, Rutile, Anatase, Thin film, Contact angle, Chemical engineering, Wetting, Sol-gel

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