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Citation: Sun Zhen-Fan, Li Yu-Guang. Surface Structural Morphology of TiO₂ Nano-Films[J]. Acta Physico-Chimica Sinica, ;2002, 18(10): 896-900. doi: 10.3866/PKU.WHXB20021006 shu

Surface Structural Morphology of TiO₂ Nano-Films

1.
School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou　510275;Department of Chemistry, Hainan Normal College, Haikou　571158

Received Date: 21 December 2001
Available Online: 15 October 2002

A TiO2 reverse micelle solution was prepared by mixing water-Triton X-100-cyclohexane reverse micelle with a mixture of titanium isobutoxide and isopentanol, and then three TiO2 films supported on glass have been made by dip-coating in the reverse micelle solution under different performance. Film A was dipped once immediately in the as-prepared reverse micelle solution, film B was dipped ten times in the as-prepared reverse solution, film C was dipped in the reverse micelle solution which had been aged six hours. The morphology of the films was studied by XRD, SEM, and AFM. The results showed that on the film A TiO2 nanometer particles distributed homogenously, but on film B and C the nano-particles were aggregated in different fashions, and formed second particles like island, the surface roughness of the film surface increased obviously, especially film C was the most rough one. According to the fractal geometry analysis, all films surface structural morphology has properties of fractal structural morphology with estimated dimension 2.22, 2.20, and 2.34, respectively.
- TiO₂ porous films;Surface structural morphology;Atomic force microscope
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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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通讯作者: 陈斌, bchen63@163.com

Surface Structural Morphology of TiO₂ Nano-Films