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

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Abstract:

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.

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Periodical:

Materials Science Forum (Volumes 486-487)

Pages:

53-56

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.486-487.53

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Online since:

June 2005

Authors:

Lian Gao, Hong Yan Liu, Jing Sun

Keywords:

Degradation, Doping, Photocatalytic, TiO2

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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References

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

Google Scholar

[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).

Google Scholar

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

Google Scholar

[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.

Google Scholar

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

Google Scholar

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

Google Scholar

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

Google Scholar

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

Google Scholar

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

Google Scholar

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

Google Scholar

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

Google Scholar

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

Google Scholar