文献类型：期刊文献

英文题名：Preparation and photocatalytic activity of TiO2 coating

作者：Wang, Jiao Jiao[1]; Zhou, Tian[2]; Zheng, Kai[1]; Rüssel, Christian[3]; Liang, Wen[1]

机构：[1] Research Institute of Biomaterials, School of Materials Science and Engineering, East China University of Science and Technology, China; [2] Department of Prosthodontics, Shanghai Key Laboratory of Stomatology, Shanghai Jiaotong University, China; [3] Otto-Schott-Institut, Universit?t Jena, Jena, Germany

年份：2012

卷号：53

期号：6

起止页码：240

外文期刊名：Glass Technology: European Journal of Glass Science and Technology Part A

收录：EI(收录号：20125215839309)

语种：英文

外文关键词：Differential thermal analysis - Film preparation - Oxide minerals - Scanning electron microscopy - Coatings - Thermogravimetric analysis - Organic solvents - Photocatalysis - Sol-gels - Thin films - X ray diffraction - Atomic force microscopy - Sol-gel process

摘要：Titanium dioxide thin films have been prepared from a tetrabutyl- orthotitanate solution in methanol as the solvent, by a sol-gel dip coating technique. The thermal properties of the TiO2 gel were analysed by thermogravimetry and differential thermal analysis (TG-DTA). Structural properties of TiO2 thin films due to different heat treatment temperatures were analysed by x-ray diffraction (XRD), Raman spectroscopy (RS), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The results show that the TiO2 thin films crystallise into the anatase phase at 400°C and that the crystallinity of the anatase phase increased with increasing temperature. The TiO2 thin films crystallize into the anatase-rutile phase at 600°C and into the rutile phase at 800°C. The photocatalytic performance of the TiO2 film was assessed by the degradation of Rhodamine B. The TiO2 thin film exhibited relatively high photocatalytic activity towards degrading Rhodamine B, which provides a potential way to reduce the pressures of worldwide environmental pollution.