Titania is an important catalytic material for photo-catalytic applications, and the sol-gel process is one of the most appropriate technologies to prepare TiO2 thin films. In the present paper, the Ce4+, Sb3+-codoped TiO2 films were prepared by sol-gel method, which were heat-treated with an applied electric filed. The phase transformation behavior of Ce4+, Sb3+-codoped TiO2 film in the electric field heating-treatment was studied by XRD and AFM. It is found that the crystals were homogeneous and the average crystal size was about 60 nm. Studies of photo-catalytic degradation show that the photo-catalytic activity of Ce4+, Sb3+-codoped TiO2 films heated to 500 ℃ in an applied electric field was higher.
参考文献
| [1] | Zhang Yuhong;Xiong Guoxing;Yao Nan et al.Preparation of titania-based catalysts for formaldehyde photocatalytic oxidation from TiCl4 by the sol-gel method[J].Catalysis Today,2001,68:89. |
| [2] | Hague D C;Mayo M J .Controlling crystallinity during processing of nano-crystalline titania[J].Journal of the American Ceramic Society,1994,77:1957. |
| [3] | Zhou F.;Liang KM.;Wang GL.;Shao H.;Hu AM. .Crystallization behavior of Li+-doped SiO2-TiO2 films prepared by sol-gel dip coating[J].Journal of Crystal Growth,2004(1/3):297-301. |
| [4] | Yu JG.;Zhao QN.;Zhao XJ. .Photocatalytic activity of nanometer TiO2 thin films prepared by the sol-gel method[J].Materials Chemistry and Physics,2001(1/3):25-29. |
| [5] | Xie Y B;Yuan C W .Visible-light responsive cerium ion modified titania sol and nanocrystallites for X-3B dye photodegradation[J].Applied Catalysis B:Environmental,2003,46:251. |
| [6] | Liu W;Liang K M;Zheng Y K et al.Effect of an electric field during solution treatment of 2091 Al-Li alloy[J].Journal of Materials Science,1996,15:1327. |
| [7] | Klypin A A .Structure and properties of alloys under the influence of electric field[J].Met Sci Heat Treatment,1979,21:177. |
| [8] | Shi Z M;Yu W G;Bayar X .Study of crystallization behavior of Ce4+-modified titania gels[J].Scripta Materialia,2004,50:885. |
| [9] | 周锋,梁开明,王国梁.电场热处理条件下TiO2薄膜的晶化行为研究[J].物理学报,2005(06):2863-2867. |
| [10] | Zhou Feng,Liang Kaiming.Crystallization Behavior of Anatase Films in Applied Electric Field Heating Process[J].稀土学报（英文版）,2006(z1):122-124. |
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