高等学校化学研究 ›› 2011, Vol. 27 ›› Issue (3): 350-353.
Synthesis and Characterization of Mesoporous Titanium Dioxide Spheres
GULI Mi-na1, CHEN Yu-ning2 and LI Xiao-tian2*
- 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
Synthesis and Characterization of Mesoporous Titanium Dioxide Spheres
GULI Mi-na1, CHEN Yu-ning2 and LI Xiao-tian2*
- 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
摘要： 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.