| 超疏水二氧化钛薄膜的制备及其经紫外光照射引发的超亲水性研究 |
| Fabrication of Superhydrophobic Titanium Oxide and Study of Its Superhydropbilicity Induced by Irradiation of Ultraviolet Light |
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| 摘要: 通过水热反应，在玻璃基底上沉积生成TiO2薄膜，TiO2薄膜呈花朵状，具有微纳米级的复合结构，在其表面有大量的乳状突起，经辛基三甲氧基硅烷表面修饰后表现出良好的超疏水性，静态接触角为164°，滚动角为4°。经紫外光照射4~6 h后，其表面变为超亲水性，接触角接近0°。用红外光谱，X射线光电子能谱(XPS)对其表面物质及元素进行表征，最后用Cassie理论对膜的润湿性进行了分析。 |
| 关键词: 二氧化钛薄膜 超疏水 超亲水 接触角 润湿性 |
| 基金项目: |
| Abstract: A flower-like TiO2 thin film with micro and nano composite structure was deposited on the glass substrate by the hydrothermal reaction, many papillaes were found on its surface. The film showed perfect superhydrophobicity after being modified by octyltrimethoxysilane with a static contact angle of 164° and the glide angle of 4°. The film was changed to superhydrophilicity with a static contact angle of 0° after being irradiated under ultraviolet light for 4~6 hours. Elements on the surface of the film were investigated by the infrared spectra and X-ray photoelectron spectroscopy, finally the wettability of the film was also discussed on the basis of Cassie′s theory. |
| Keywords: titanium dioxide film superhydrophobicity superhydrophilicity contact angle wettability |
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| 石彦龙,冯晓娟,杨 武,王永生.超疏水二氧化钛薄膜的制备及其经紫外光照射引发的超亲水性研究[J].无机化学学报,2010,26(12):2209-2214. |
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