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Citation: SHEN Shu-Fang, LIU Xiu-Qin, XU Cheng-Tian, CHEN Bang-Lin. Preparation and Superhydrophilicity of Sr²⁺ Doped TiO₂ Films[J]. Chinese Journal of Applied Chemistry, ;2010, 27(1): 74-77. shu

Preparation and Superhydrophilicity of Sr²⁺ Doped TiO₂ Films

1.
Department of Chemistry, East China Normal University, Shanghai 200062

Received Date: 25 December 2008
Available Online: 2 July 2009
Fund Project: "九七三"专项基金(2006CB932503) 资助项目 (2006CB932503)

SrO-TiO₂ films on glass slides were prepared via sol-gel process and dip-coating technique using tetrabutyl titanate as a precursor.The structure of SrO-TiO₂ powder was characterized by XRD and IR.The transmission rates of the films were measured by UV-Vis spectroscopy.The water contact angles of the films were also measured.The results obtained are as follows:the grain size of TiO₂ in the SrO-TiO₂ powder became smaller when a proper amount of Sr²⁺ was introduced.The hydroxyl content on the surface of the thin film and its stability have been increased,which are beneficial to the super-hydrophilicity of the film.Under the irradiation of either ultraviolet light for an hour or natural light for five hours,the contact angles of SrO-TiO₂ thin films with 1.0%(molar percentage) Sr²⁺ doping amount were close to 0°,and water can easily spread over the surfaces of the films suggesting good hydrophilicities of the as-prepared films.
- TiO₂ film,
- superhydrophilicity,
- Sr²⁺ doping,
- contact angle
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沈阳化工大学材料科学与工程学院沈阳 110142

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Preparation and Superhydrophilicity of Sr2+ Doped TiO2 Films

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通讯作者: 陈斌, bchen63@163.com

Preparation and Superhydrophilicity of Sr²⁺ Doped TiO₂ Films