Preparation and Characterization of Doped Nanometer TiO2


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With Ti(OBu)4 as precursor, and HAC as complexing agent, pure and Fe-doped TiO2 gelatins were prepared by sol-gel method. During the process of gel formation, metal ions were dispersed into the porous TiO2 matrix. Then, powders of pure nano-TiO2 and Fe-doped nano-TiO2 were prepared by drying, grinding and calcining at different temperatures. The grain size and phase structure of pure and Fe-doped TiO2 after calcined at different temperatures, were studied by X-ray diffraction (XRD) and Beckman Coulter Sorption Analysis. The results showed that, the Fe3+-TiO2 had better photocatalytic activity in degradation rate of methyl orange under sunlight. The degradation rate was up to 93% as the system was placed under sunlight for 5 h. The optimum calcination temperature for the best catalytic activity was determined to be 500°C, and the mechanism was discussed.



Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee




L. Y. Song et al., "Preparation and Characterization of Doped Nanometer TiO2", Advanced Materials Research, Vols. 26-28, pp. 649-652, 2007

Online since:

October 2007




[1] A. Fujishima, K. Honda, Nature 238 (1972) 37.

[2] Hiroaki Uchiyama, Keisei Suzuki, Yuya Oaki, et al., Materials Science and Engineering B, 123 (2005) 248-251.


[3] I. Sopyan, S. Murasawa, K. Hashimoto, A. Fujishima, Chem. Lett., (1994)723.

[4] D.F. Ollis, H. Al-Ekabi, Elsevier, Amsterdam, (1993).

[5] K. Kato, A. Tsuzuki, H. Taoda, Y. Torii, T. Kato, Y. Butsugan, J. Mater. Sci., 29(1994)5911.

[6] Yeongsoo Choi, Journal of materials science, 39 (2004)1837-1839.

[7] X. Yan, J. He and D.G. Evans, Y. Zhu, X. Duan, Journal of Porous Materials, 11(2004)131-139.

[8] A. L. Linsebigler, G. Q. Lu and J. T. J. Yates, Chem. Rev, 69 (1995)95.

[9] J. G. Yu, Jimmy C. Yu, B. Cheng and X. J. Zhao, Journal of Sol-Gel Science and Technology, 24(2002) 39-48.

[10] J. Lin, J.C. Yu, D. Lo, and S.K. Lam, J. Catal., 368 (1999)183.