Synthesis of rutile and anatase films with high surface areas in aqueous solutions containing urea

被引:56
作者
Yamabi, S [1 ]
Imai, H [1 ]
机构
[1] Keio Univ, Dept Appl Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan
关键词
coatings; deposition process; nanostructures; titanium oxide;
D O I
10.1016/S0040-6090(03)00539-X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Rutile and anatase TiO2 films were successfully fabricated in TiOSO, aqueous, solutions containing urea at near room temperature. The molar ratio of urea to Ti (R) in the precursor solutions determined the crystal phase of the TiO2 films. Rapid precipitation from highly supersaturated solutions was inhibited by complexing Ti4+ cations with urea, and continuous thin films of rutile and anatase were constructed on substrates. The specific surface area of the films increased from 170 to 360 m(2)/g with increasing R. The urea affected the specific surface area by selective adsorption on the specific surface of crystallites. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:86 / 93
页数:8
相关论文
共 46 条
[1]  
Agarwal M, 1997, J AM CERAM SOC, V80, P2967, DOI 10.1111/j.1151-2916.1997.tb03222.x
[2]   Catalyst deactivation in the gas phase destruction of nitrogen-containing organic compounds using TiO2/UV-VIS [J].
Alberici, RM ;
Canela, MC ;
Eberlin, MN ;
Jardim, WF .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 30 (3-4) :389-397
[3]   Synthesis of phosphorus-free mesoporous titania via templating with amine surfactants [J].
Antonelli, DM .
MICROPOROUS AND MESOPOROUS MATERIALS, 1999, 30 (2-3) :315-319
[4]   Rutile formation in hydrothermally crystallized nanosized titania [J].
Bacsa, RR ;
Gratzel, M .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (08) :2185-2188
[5]  
Barbe CJ, 1997, J AM CERAM SOC, V80, P3157, DOI 10.1111/j.1151-2916.1997.tb03245.x
[6]  
Baskaran S, 1998, J AM CERAM SOC, V81, P401, DOI 10.1111/j.1151-2916.1998.tb02347.x
[7]   CERAMIC THIN-FILM FORMATION ON FUNCTIONALIZED INTERFACES THROUGH BIOMIMETIC PROCESSING [J].
BUNKER, BC ;
RIEKE, PC ;
TARASEVICH, BJ ;
CAMPBELL, AA ;
FRYXELL, GE ;
GRAFF, GL ;
SONG, L ;
LIU, J ;
VIRDEN, JW ;
MCVAY, GL .
SCIENCE, 1994, 264 (5155) :48-55
[8]  
DE GJ, 1998, DISPER SCI TECHNOL, V19, P207
[9]  
DE GJ, 1997, CHEM MATER, V9, P184
[10]   A novel wet process for the preparation of vanadium dioxide thin film [J].
Deki, S ;
Aoi, Y ;
Kajinami, A .
JOURNAL OF MATERIALS SCIENCE, 1997, 32 (16) :4269-4273