- 作者: 陳汝芬, 張翠軒
- 作者服務機構: College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang, Hebei 050016, P. R. China
- 中文摘要: Nanostructured TiO2 coating films on silica glass substrates were prepared by the assembly technique. TiO2 colloids were synthesized employing the sol-gel method using TiCl4 as a precursor. The effect on the surface structures which was caused by the polyethylene glycol (PEG) added to the precursor solution and the photocatalytic activity were studied. The experimental results showed that the cobble-like TiO2 coating films were synthesized at 500 °C. On the surface of the samples, TiO2 films exhibited uniform shape and a narrow size distribution. The result of proper PEG added to the precursor solution led to the decreasing of the size of TiO2 particles and the increasing of the surface area of the samples. The photocatalytic activity of TiO2 films with PEG was higher than that of samples without PEG.
- 英文摘要: --
- 中文關鍵字: TiO2 coating films; Assembly technigue; Preparation; Photocatalytic activity.
- 英文關鍵字: --