Synthesis of alumina-titania solid solution by sol-gel method

被引：25

作者：

Jung, Young-Soo ^{[1
]}

Kim, Dong-Woo ^{[1
]}

Kim, Young-Soo ^{[1
]}

Park, Eun-Kyung ^{[1
]}

Baeck, Sung-Hyeon ^{[1
]}

机构：

[1] Inha Univ, Dept Chem Engn, Reg Innovat Ctr Environm Technol Thermal Plasma, Inchon 402751, South Korea

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2008年 / 69卷 / 5-6期

关键词：

inorganic compounds; sol-gel growth; Raman spectroscopy; X-ray diffraction; crystal structure;

D O I：

10.1016/j.jpcs.2007.10.037

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Aluminum-titanium mixed metal oxides with various compositions were synthesized by sol-gel method and the photocatalytic activities for acetaldehyde decomposition were investigated. A mixture of aluminum isopropoxide and titanium butoxide in isopropanol was used as a precursor, and composition was controlled by varying relative concentration of each precursor in a mixture. X-ray diffraction analysis and Raman spectroscopy were employed to examine crystalline structure and surface area of synthesized samples was determined by BET method. Although structure transformation from anatase to rutile phase was observed for all synthesized samples, the transformation temperature was found to depend on sample composition (Al/Ti ratio). Photocatalytic decomposition of acetaldehyde was carried out in a closed borosilicate reactor under visible light illumination. The photocatalytic activity was measured with respect to composition and it was found to be strongly dependent on sample composition. Aluminum-titanium mixed oxides showed higher photocatalytic activity for acetaldehyde decomposition than either pure titania or pure alumina. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1464 / 1467

页数：4

共 9 条

[1]

ALEJANDRE AG, 1997, MICROPOROUS MATER, V12, P79

[2] Synthesis, characterization and photocatalytic activity of different metal-doped titania systems [J].

Colmenares, J. C. ;

Aramendia, M. A. ;

Marinas, A. ;

Marinas, J. M. ;

Urbano, F. J. .

APPLIED CATALYSIS A-GENERAL, 2006, 306 (120-127) :120-127

[3] Redox behavior of VIB transition metal ions in rutile TiO2 solid solutions:: An XRD and EPR study [J].

Cordischi, D ;

Gazzoli, D ;

Occhiuzzi, M ;

Valigi, M .

JOURNAL OF SOLID STATE CHEMISTRY, 2000, 152 (02) :412-420

[4]

HUI Y, 2005, J CRYST GROWTH, V58, P563

[5] The preparation and characterization of La doped TiO2 nanoparticles and their photocatalytic activity [J].

Jing, LQ ;

Sun, XJ ;

Xin, BF ;

Wang, BQ ;

Cai, WM ;

Fu, HG .

JOURNAL OF SOLID STATE CHEMISTRY, 2004, 177 (10) :3375-3382

[6] Visible-light-driven nitrogen-doped TiO2 photocatalysts:: effect of nitrogen precursors on their photocatalysis for decomposition of gas-phase organic pollutants [J].

Li, D ;

Haneda, H ;

Hishita, S ;

Ohashi, N .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2005, 117 (01) :67-75

[7] Particle size of powders under hydrothermal conditions [J].

Li, WJ ;

Shi, EW ;

Fukuda, T .

CRYSTAL RESEARCH AND TECHNOLOGY, 2003, 38 (10) :847-858

[8] Photodegradation of a textile dye catalyzed by sol-gel derived nanocrystalline TiO2 via ultrasonic irradiation [J].

Senthilkumaar, S ;

Porkodi, K ;

Vidyalakshmi, R .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2005, 170 (03) :225-232

[9] Nanoporous titania-alumina mixed oxides - an alkoxide free sol-gel synthesis [J].

Sivakumar, S ;

Sibu, CP ;

Mukundan, P ;

Pillai, PK ;

Warrier, KGK .

MATERIALS LETTERS, 2004, 58 (21) :2664-2669

← 1 →