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Simple Sol-Gel Route for Preparation of Nanosized Porous TiO2 Powders Using Inorganic Precursor |
ZHANG Xin1, WU Junsheng2, XIAO Kui2, ZHOU Jianlong2, YANG Renchun3, LI Xiaogang2 |
1. Nuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing 100082, China;2. Advanced Materials and Technology Institute, University of Science and Technology Beijing, Beijing 100083, China;3. College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, China |
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Abstract: NThe nanosized porous TiO2 powders were synthesized by using the titanium sulfate solution through a simple sol-gel route, where the formamide was used as the pH adjusting agent. The X-ray diffraction, the scanning electron microscopy, the transmission electron microscopy and the N2 Adsorption/Desorption were used to analyze the prepared samples. The results show that the prepared TiO2 powders have a high thermal stability and maintain as a monophasic anatase in cases of calcination from 450℃ to 750℃, furthermore, the main crystalline phase remains as that of anatase even at 850℃. The crystalline grains of TiO2 powders grow larger and the specific surface area is reduced with enhancing the calcination temperature. The microstructure of TiO2 powders is that of aggregation of nanocrystalline with diameter of approximately 10 nm in case of calcination at 550℃. The specific surface area of the prepared samples is approximately 219.70m2·g-1 after calcinating at 550℃ and there is a specific bimodal pore structure in the prepared samples.
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Received: 25 July 2012
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[2] |
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[3] |
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[4] |
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[5] |
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[6] |
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