TiO2 Based Films Prepared by Sol-Gel Method for Advanced Water Treatment


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In the present work, iron doped TiO2 films were prepared by sol-gel method. An extensive study by varying the dopant quantity (0, 0.7, 1.4, 5 % wt Fe2O3 related to TiO2), the type of substrate (glass or ITO coated glass) and annealing temperature (300 and 500°C) was performed. The sol-gel process evolution was studied by viscosity measurements and the unsupported gels were analyzed by thermal analysis (DTA/TGA) and IR spectroscopy. The deposited films were characterized by spectroellipsometry (SE). The catalytic activity of the films was determinate by measuring the degradation rate of the salicylic acid used as a model organic substance. A complex influence of the investigated parameters on the photocatalytic properties of the TiO2 based films was established.



Materials Science Forum (Volumes 492-493)

Edited by:

Omer Van der Biest, Michael Gasik, Jozef Vleugels




A. Barau et al., "TiO2 Based Films Prepared by Sol-Gel Method for Advanced Water Treatment", Materials Science Forum, Vols. 492-493, pp. 311-316, 2005

Online since:

August 2005




[1] M. Langlet, A. Kim, M. Audier, A. Guillard, J.M. Herrmann: Thin Solid Films Vol. 429 (2003), p.13.

DOI: https://doi.org/10.1016/s0040-6090(02)01290-7

[2] Y. Zhu, L. Zhang, W. Yao, L. Cao: App. Surf. Sci. Vol. 158 (2000), p.32.

[3] D.A.G. Bruggeman: Ann. Phys. Vol. 24 (1935), p.636.

[4] J. Tauc, R. Grigorovici and A. Vancu: Phys. Stat. Solidi Vol. 15 (1966), p.627.

[5] S.H. Wemple and M. Di Domenico Jr.: Phys. Rev. B Vol. 3 (1971), p.1338.

[6] I. Solomon, M.P. Schmidt, C. Senemaud and M. Dreiss Khodja: Phys. Rev. Vol. B38 (1988) p.13263.

[7] M. Crisan, M. Gartner, A. Szatvanyi, and M. Zaharescu: Rev. Rom. Chim. Vol. 47 (2002), p.123.

[8] H. Günzler and H.U. Gremlich: IR Spectroscopy-An Introduction (WILEY-VCH, Germany, 2002).

[9] B. Yoldas: Appl. Opt. Vol. 21 (1982), p.2960.

[10] H. Schroeder: Physics of Thin Films Vol. 5 (Academic Press, Edt. Hass and Thun, 1969).

[11] M. Zaharescu, M. Crisan, D. Crisan, M. Gartner, F. Moise: Rev. Roum. Chim. Vol. 40 (1995) p.993.

[12] N. Smirnova, A. Eremenko, O. Rusina, W. Hopp, L. Spanhel: J. Sol-Gel Sci. & Technol. Vol. 21 (2001) p.109.

DOI: https://doi.org/10.1023/a:1011224606025

[13] B. Pal, M. Sharon, G. Nogami: Mat. Chem. & Phys. Vol. 59 (1999), p.254.

[14] K.T. Ranjit, T.K. Varadarajan, B. Viswanathan: J. Photochem. & Photobiol. A: Chem. Vol. 96 (1996), p.181.

[15] M.I. Litter and J.A. Navio, J. Photochem. & Photobiol. A: Chem. Vol. 98 (1996), p.171.

[16] P. Pichat: Handbook of Heterogenous Photocathalysis, Vol. 4 (Wiley-VCH, Germany, 1997).

[17] W. Lee, H.S. Shen, K. Dwight and A. Wold: J. Solid State Chem. Vol. 106 (1993), p.288.

[18] J. Papp, H.S. Shen, R. Kershaw, K. Dwight and A. Wold: Chem Mater. Vol. 5 (1993), p.284.

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