Lanthanum-Doped Titania Film Coated on Light Leakage Fiber Photo-Degradation Methyl Orange


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Lanthanum-doped anatase TiO2 coatings, which are composed of assemble crystalline of 50 nm diameter particles, when the percentage of dopant is 0.5 wt%, have been successfully fabricated by sol–gel dip-coating process on light leakage silica fiber (LSF) which length is 15cm and diameter is 125μm. This was achieved by adjustment of the lanthanum-doped sol–gel parameters such as molar ratio of precursors in lanthanum-doped TiO2-sols, the ratio of titanium tetrabutoxide to polyvinyl alcohol, dip-coating velocity, drying duration in air, thermal treatment and number of cyclical time of the process. Titania nano crystals were prepared at ambient temperature in a liquid media using titanium tetrabutoxide as precursor, and the crystallization of amorphous precursor was preceded by peptizing with acid and then refluxing for a periodic time in homothermal water-bath. The photocatalytic properties of the La-TiO2 films had been testified by the photo degradation of methyl orange. The lanthanum-doped anatase TiO2 thin films were characterized by XRD and TEM. The products show much improved photocatalytic activity that will be useful in the design of a novel antibacterial, deodorant and antipollution photo reactor.



Advanced Materials Research (Volumes 512-515)

Edited by:

Nanqi Ren, Lam Kin Che, Bo Jin, Renjie Dong and Haiquan Su




T. Yu et al., "Lanthanum-Doped Titania Film Coated on Light Leakage Fiber Photo-Degradation Methyl Orange", Advanced Materials Research, Vols. 512-515, pp. 1651-1655, 2012

Online since:

May 2012




[1] A.Fujishima and K.Honda:Nature Vol.238 (1972),p.37–38.

[2] FA.Sigoli,RR.Goncalves,Y.Messaddeq,SJL.Ribeiro:Journal of Non-Crystalline Solids Vol.352 (32-35) (2006),p.3463-3468.

[3] A.Fujishima,N.Tata,Rao.D.A.Tryk,:Journal of Photochemistry and Photobiology,C:Photochemistry Reviews Vol.1(1) (2000),p.1-21.

[4] S.N.Frank,A.J.J .Bard: Phys Chem.Vol.81(1977),p.1484.

[5] A.Heller:Acc.Chem.Res.Vol.28(1995),p,503-508.

[6] I.Sopyan,M.Watanabe,S.Murasawa,K.Hashimoto and A. Fujishima:Journal of Electroanalytical Chemistry Vol.415(1-2) (1996),p.183-186.

[7] Y.Murakami,T.Matsumoto,Y.Watanabe and Y.Takasu:Transactions of the Materials Research Society of Japan Vol. 24(1999),p.425–427.

[8] M.Hoffmann,S.Martin,W.Choi and D.Bahnemann:Chem.Rev.Vol.95(1) (1995),p.69-96.

[9] K.Shimizu,H.Imai,H.Hirashima and K.Tsukuma: Thin Solid Films Vol.351 (1-2)( 1999),p.220-224.

[10] S.Takeda,K.Prasad and H.Hosono:Thin Solid Films Vol.392(2)( 2001),p.338-344.

[11] D.Bhattacharyya,N.K.Sahoo,S.Thakur and N.C.Das:Thin Solid Films Vol.360(2000),p.96-102.

[12] A.Matsuda,T.Matoda,Y. Kotani,T.Kogure,M.Tatsumisago and T.Minami:J.Sol–Gel Sci.Technol.Vol.26(1-3)( 2003),p.517-521.

[13] M.Lindner,J.Theurich and D.W.Bahnemann:Water Sci Technol Vol.354(1997),p.79–86.

[14] N.Martyanov and E.N.Savinov:Catal Today Vol.39(1997).P.197–205.

[15] J.Y.An and B.W. Kim:J Biotechnol Vol.80(2000),p.35–44.

[16] R.Bechara,A.Aboukais and J.P.Bonnelle:J. Chem.Soc.Faraday Trans Vol.89(1993),p.1257-1262.

[17] G.Beamson,D.T.Clark,J.Kendrick and D.Briggs:Journal of Electron Spectroscopy and Related Phenomena Vol.57(1)( 1991),p.79-90.

[18] T. Umebayashi, T. Yamaki, H. Itoh and K. Asai: Appl. Phys. Lett. Vol. 81(2002), pp.454-456.

[19] Michael R. Hoffmann, Scot T. Martin, Wonyong Choi, et al: Chem. Rev. Vol. 95(1)( 1995), pp.69-96.

[20] M.A. Fox and M.T. Duby: Chem. Rev. Vol. 93(1)( 1993455), pp.341-357.