Synthesis and Characterization of Mesoporous Titanium Dioxide Spheres

Chemical Research in Chinese Universities ›› 2011, Vol. 27 ›› Issue (3): 350-353.

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Synthesis and Characterization of Mesoporous Titanium Dioxide Spheres

GULI Mi-na¹, CHEN Yu-ning² and LI Xiao-tian^2*

1. Solar Energy Center, Renewable Energy School, North China Electric Power University, Beijing 102206, P. R. China;
2. Key Laboratory of Automobile Materials of Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130012, P. R. China

Received:2010-08-26 Revised:2010-11-10 Online:2011-05-25 Published:2011-04-29
Contact: LI Xiao-tian2 E-mail:xiaotianli@jlu.edu.cn
Supported by:
Supported by the National Natural Science Foundation of China(No.21076094).

Abstract

Abstract: Mesoporous titanium dioxide spheres were synthesized by a convenient solvothermal method at room temperature with tetraethyl titanate as a precursor. Investigation by means of X-ray diffraction(XRD), transmission electron microscopy(TEM), scanning electron microscopy(SEM), and N2 adsorption-desorption isotherms confirms that the sample has a mesostructure with a higher specific surface area and shows that the mesoporous TiO2 spheres have a diameter of 2 μm, the average pore size is about 5.9 nm, and the BET surface area and specific pore volume are about 236 m2/g and 2.116 cm3/g, respectively. The anatase and rutile mesoporous TiO2 spheres calcined at 700 °C show much better photocatalytic activity than the samples calcined at other temperatures and is comparable to an uncalcined sample in the photodegradation of Methyl Blue(MB) under the UV irradiation.

Key words: Mesoporous, Sphere, Titanium dioxide

GULI Mi-na, CHEN Yu-ning and LI Xiao-tian*. Synthesis and Characterization of Mesoporous Titanium Dioxide Spheres[J]. Chemical Research in Chinese Universities, 2011, 27(3): 350-353.

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Synthesis and Characterization of Mesoporous Titanium Dioxide Spheres

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