caa a22 4500 463233921 CHVBK 20180405153250.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10853-006-0236-z doi (NATIONALLICENCE)springer-10.1007/s10853-006-0236-z Improved visible-light responsive photocatalytic activity of N and Si co-doped titanias [Elektronische Daten] [Hirotaka Ozaki, Shinji Iwamoto, Masashi Inoue] Thermal reaction of titanium tetraisopropoxide and tetraethyl orthosilicate in 1,4-butanediol afforded nanocrystalline silica-modified titanias having large surface area and superior thermal stability. In this study, the thus-obtained silica-modified titanias were treated in an NH3 flow at high temperatures, and their physical and photocatalytic properties were investigated. Compared with NH3-treated TiO2 without silica modification, the NH3-treated silica-modified titanias showed a stronger absorption in the visible region (400-500nm) and had a larger peak at 396eV in the N 1s XPS spectrum. These results indicate that a larger amount of nitrogen was stably doped in the silica-modified titania. The obtained products exhibited a high photocatalytic activity for degradation of Rhodamine B and decomposition of acetaldehyde under visible light irradiation. Springer Science+Business Media, LLC, 2006 Ozaki Hirotaka Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, 615-8510, Katsura, Kyoto, Japan aut Iwamoto Shinji Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, 615-8510, Katsura, Kyoto, Japan aut Inoue Masashi Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, 615-8510, Katsura, Kyoto, Japan aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/11(2007-06-01), 4009-4017 0022-2461 42:11<4009 2007 42 10853 https://doi.org/10.1007/s10853-006-0236-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0236-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ozaki Hirotaka Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, 615-8510, Katsura, Kyoto, Japan aut NATIONALLICENCE 700 1- Iwamoto Shinji Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, 615-8510, Katsura, Kyoto, Japan aut NATIONALLICENCE 700 1- Inoue Masashi Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, 615-8510, Katsura, Kyoto, Japan aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/11(2007-06-01), 4009-4017 0022-2461 42:11<4009 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer