The Preparation of Rutile TiO2 Doped with Rare Earth Metal Ions, Sulfur and Their Photocatalytic Properties


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Small quantities of lanthanum, yttrium and sulfur are doped in rutile n-TiO2 that was synthesized by an in-situ hydrothermal method. Their photocatalytic activities are characterized by the degradation of methylene blue (MB) under UV-Vis and visible light irradiation. The results show that lanthanum and yttrium ions are rich on the particle surface, which not only makes the surface energy decrease but also inhibits the recombination of photoexcited carriers, while S-doping produces states in the band gap of TiO2 that absorb visible light. Compared to the S-doping, La-doping, and Y-doping, respectively, the synergistic effects of (S, La)-codoping and (S, Y)-codoping result in a higher photocatalytic activity under visible light irradiation.



Materials Science Forum (Volumes 486-487)

Edited by:

Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee




L. Gao et al., "The Preparation of Rutile TiO2 Doped with Rare Earth Metal Ions, Sulfur and Their Photocatalytic Properties", Materials Science Forum, Vols. 486-487, pp. 53-56, 2005

Online since:

June 2005




[1] R. Asahi, T. Morikawa, T. Ohwaki and Y. Taga: Science Vol 293 (2001), p.269.

[2] H. Irie, S. Washizuka, N. Yoshino and K. Hashimoto: Chem. Commun. 2003, p.1298; T. Morikawa, R. Asahi, T. Ohwaki, A. Aoki and Y. Taga: Jpn. J. Appl. Phys. Vol. 40 (2001).

[3] T. Umebayashi, T. Yamaki, H. Itoh and K. Asai: Appl. Phys. Lett. Vol. 81 (2002), p.454.

[4] K. Nukumizu, J. Nunoshige, T. Takata, J. N. Kondo and M. Hara: Chem. Lett. Vol. 32 (2003), p.196; J. C. Yu, J. Yu, W. Ho, Z. Jiang and L. Zhang: Chem. Mater. Vol. 14 (2002), p.3808.

[5] S. Sakthivel and H. Kisch: Angew. Chem. Int. Ed., Vol. 42 (2003), p.4908.

[6] K. T. Ranjit, I. Willner, S. H. Bossmann and A. M. Braun: Enviro. Sci. Technol. Vol. 35 (2001), p.1544.

[7] J. Lin and J. C. Yu: J. Photochem. Photobiol. A: Chem. Vol. 116 (1998), p.63.

[8] M. Reddy, B. Chowdhury and P. G. Smirniotis: Appl. Catal. A: Gen. Vol. 219 (2001), p.53.

[9] Hongyan Liu and Lian Gao: Chem. Lett. Vol. 33 (2004), P. 730.

[10] P. Sibu, S. R. Kumar, P. Mukundan and K. G. K. Warrier: Chem. Mater. Vol. 14 (2002), p.2876.

[11] H. Cheng, J. Ma, Z. Zhao and L. Qi: Chem. Mater. Vol. 7 (1995), p.663.

[12] T. Zhang, T. Oyama, A. Aoshima, H. Hidaka, J. Zhao and N. Serpone: J. Photochem. Photobiol. A: Chem. Vol. 140 (2001), p.163.