caa a22 4500 463233263 CHVBK 20180405153248.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10853-006-0553-2 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0553-2 Synthesis of titanium oxide layers on glass substrates with aqueous refluxed sols (RS) and photocatalytic activities [Elektronische Daten] [Lei Ge, Mingxia Xu, Haibo Fang] Nanocrystalline anatase films were prepared on glass substrates by the dip-coating method from aqueous refluxed sols and calcined at 100, 300 and 500°C. FT-IR, TEM, SEM, XRD, UV-VIS and XPS analysis were used to characterize the microstructure, phase evolution and chemical composition of the refluxed sols (RS) sols and TiO2 films. The photocatalytic activities of the TiO2 films were evaluated by photocatalytic degradation of aqueous methyl orange solutions. It was found that the RS sols were flavescent, alkalescent and contained anatase crystals. The TiO2 thin films contained not only Ti and O elements, but also a small amount of N and Na elements. The TiO2 films were transparent and its maximal light transmittance exceeded 80% under visible light region. Calcined at 300°C, the TiO2 thin film showed the highest photocatalytic activity, when the calcination temperature is higher than 300°C, the decrease in photocatalytic activity is due to sintering and growth of TiO2 crystallites resulting in the decrease of surface area. The results suggested that RS sols are promising novel precursors for synthesizing TiO2 films, and refluxing technique is quite efficient in preparing titania nanocrystalline films. Springer Science+Business Media, LLC, 2007 Ge Lei Department of Materials Science and Engineering, China University of Petroleum, 102249, Beijing, P.R. China aut Xu Mingxia School of Materials Science and Engineering, Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, 300072, Tianjin, P.R. China aut Fang Haibo School of Materials Science and Engineering, Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, 300072, Tianjin, P.R. China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/13(2007-07-01), 4926-4934 0022-2461 42:13<4926 2007 42 10853 https://doi.org/10.1007/s10853-006-0553-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0553-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ge Lei Department of Materials Science and Engineering, China University of Petroleum, 102249, Beijing, P.R. China aut NATIONALLICENCE 700 1- Xu Mingxia School of Materials Science and Engineering, Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, 300072, Tianjin, P.R. China aut NATIONALLICENCE 700 1- Fang Haibo School of Materials Science and Engineering, Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, 300072, Tianjin, P.R. China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/13(2007-07-01), 4926-4934 0022-2461 42:13<4926 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer