Comparison study on the size and phase control of nanocrystalline TiO2 in three Ti–Si oxide structures
作者： Lu-Yan Wang , Yan-Ping Sun , Bing-She Xu
DOI: 10.1007/S10853-007-2431-Y
关键词:
摘要: Three types of Ti–Si binary oxides have been prepared by sol-gel processes. The effects SiO2 addition and annealing temperature on the grain size, phase transition, dispersion, microstructure nanocrystalline (nc) TiO2 anatase in three oxide structures comparatively investigated X-ray diffraction (XRD) analysis high-resolution transmission electron microscopy (HRTEM). growth anatase-rutile transformation (ART) ncTiO2 were found to depend not only content temperature, but also composite structure. Both ART proved be significantly inhibited with increasing for all samples, structure intimately mixed showed best inhibiting ability under high-temperature annealing. This result might attributed variations large lattice strains ncTiO2, which mainly induced substitution Ti4+ Si4+. Plausible mechanisms are proposed. To inhibit 10 30 mol% optimal samples annealed at 773 K 1273 K, respectively.
springer.com
harvard.edu
sci-hub.se 参考文章(31)
K. Miyashita, S. Kuroda, T. Ubukata, T. Ozawa, H. Kubota, Enhanced effect of vacuum-deposited SiO2 overlayer on photo-induced hydrophilicity of TiO2 film Journal of Materials Science. ,vol. 36, pp. 3877- 3884 ,(2001) , 10.1023/A:1017901717571
G. Takahiro, K. Takayuki, A. Yoshimoto, CRYSTALLIZATION BEHAVIOR OF SIO2-TIO2 CERAMICS DERIVED FROM TITANOSILOXANES ON PYROLYSIS Journal of Sol-Gel Science and Technology. ,vol. 13, pp. 975- 979 ,(1998) , 10.1023/A:1008648028981
Yiming Xu, Wei Zheng, Weiping Liu, Enhanced photocatalytic activity of supported TiO2: dispersing effect of SiO2 Journal of Photochemistry and Photobiology A-chemistry. ,vol. 122, pp. 57- 60 ,(1999) , 10.1016/S1010-6030(98)00470-5
Hiroaki Uchiyama, Keisei Suzuki, Yuya Oaki, Hiroaki Imai, A novel adsorbent photocatalyst consisting of titania and mesoporous silica nanoparticles Materials Science and Engineering: B. ,vol. 123, pp. 248- 251 ,(2005) , 10.1016/J.MSEB.2005.08.007
Tsunehiro Tanaka, Kentaro Teramura, Takashi Yamamoto, Sakae Takenaka, Satohiro Yoshida, Takuzo Funabiki, TiO2/SiO2 photocatalysts at low levels of loading: preparation, structure and photocatalysis Journal of Photochemistry and Photobiology A: Chemistry. ,vol. 148, pp. 277- 281 ,(2002) , 10.1016/S1010-6030(02)00054-0
R. A. Spurr, Howard. Myers, Quantitative Analysis of Anatase-Rutile Mixtures with an X-Ray Diffractometer Analytical Chemistry. ,vol. 29, pp. 760- 762 ,(1957) , 10.1021/AC60125A006
M. Takeuchi, Y. Onozaki, Y. Matsumura, H. Uchida, T. Kuji, Photoinduced hydrophilicity of TiO2 thin film modified by Ar ion beam irradiation Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 206, pp. 259- 263 ,(2003) , 10.1016/S0168-583X(03)00736-5
D.C.M. Dutoit, M. Schneider, A. Baiker, Titania-Silica Mixed Oxides: I. Influence of Sol-Gel and Drying Conditions on Structural Properties Journal of Catalysis. ,vol. 153, pp. 165- 176 ,(1995) , 10.1006/JCAT.1995.1118
Zhijie Li, Bo Hou, Yao Xu, Dong Wu, Yuhan Sun, Hydrothermal synthesis, characterization, and photocatalytic performance of silica-modified titanium dioxide nanoparticles. Journal of Colloid and Interface Science. ,vol. 288, pp. 149- 154 ,(2005) , 10.1016/J.JCIS.2005.02.082
S Cheng, Photocatalytic decomposition of phenol over titanium oxide of various structures Catalysis Today. ,vol. 26, pp. 87- 96 ,(1995) , 10.1016/0920-5861(95)00071-M