Effects of Boron-Doped on Photocatalysis and Hydrophilicity of TiO2 Film

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In order to investigate the effects of doping boron on the self-cleaning properties of TiO2 thin films, sol-gel method was employed to prepare TiO2 films with various amount of boron on the glass substrates. Atomic Force Microscope (AFM) and X-ray diffraction (XRD) were carried out to investigate the effects of boron on the microstructure and crystallization behavior of the thin films. The photocatalytic activity and the hydrophilicity of the films were also measured. The results showed that the photocatalytic activity of TiO2 films was improved by doping boron, and its hydrophilicity wasn’t destroyed. This can be ascribed to the enhancement of the surface energy, which was caused by the reduction of the crystal grain size of TiO2.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1924-1926

DOI:

10.4028/www.scientific.net/KEM.336-338.1924

Citation:

H. Li et al., "Effects of Boron-Doped on Photocatalysis and Hydrophilicity of TiO2 Film", Key Engineering Materials, Vols. 336-338, pp. 1924-1926, 2007

Online since:

April 2007

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$35.00

[1] R. Wang, K. Hashimoto, A. Fujishima, et al.: Nature Vol. 388 (1997), p.431.

[2] M. Nakamura, L. Sirghi, T. Aoki and Y. Hatanaka: Surf. Sci Vol. 778 (2002), p.507.

[3] K. Chiang, R. Amal and T. Tran: Adv. Environ. Res Vol. 6 (2002), p.471.

[4] M. Gratzel and R.F. Howe: J. Phys. Chem Vol. 94 (1990), p.2566.

[5] A.L. Linsebigler, G.Q. Lu and T. Yates: Chem. Rev Vol. 95 (1995), p.735.

[6] W. Choi, A. Termin and M.R. Hoffman: J. Phys. Chem Vol. 98 (1994), p.13669.

[7] R. Asahi, A.T. Morikaw and T. Ohwahi: Science Vol. 293 (2001), p.269.

[8] S. Hata, Y. Kai, I. Yamanaka, et al.: JSAE Review Vol. 21 (2000), p.97.

[9] D.W. Chen and A.K. Ray: Wat. Res Vol. 32 (1998), p.3223.

[10] X.Z. Fu, L.A. Clark and Q. Yang: Environ. Sci. Tech Vol. 30 (1996), p.647. Fig. 3 Apparent speed constant of decomposed by TiO2 thin film with boron-doped Fig. 4 Contact angle of de-ionized water on TiO2 thin films with boron-doped.

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