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靳亚雪,王斌,齐红基,朱茂东.自掺杂二氧化钛薄膜的结构,光谱和光催化性能[J].稀有金属材料与工程(英文),2019,48(12):3841~3845.[Yaxue Jin,Bin Wang,Hongji Qi and Maodong Zhu.Structure, spectral and photocatalytic properties of self - doped TiO2-x Thin Films[J].Rare Metal Materials and Engineering,2019,48(12):3841~3845.]
Structure, spectral and photocatalytic properties of self - doped TiO2-x Thin Films
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Received:June 12, 2018  Revised:July 05, 2018
DOI:
Key words: Self-doped TiO2-x thin film  Materials characterization  Photocatalytic activity.
Foundation item:国家自然科学基金项目(面上项目,重点项目,重大项目)
Author NameAffiliation
Yaxue Jin,Bin Wang,Hongji Qi and Maodong Zhu  
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Abstract:
      Tailored production of titanium dioxide thin films (TTFs) are widely used in green energy field due to their outstanding advantages. In this work, the TTFs wereSprepared by the electron beam evaporation system and annealed in air and H2 respectively. With excellent stability, samples annealed in H2 maintain their pale yellow in the air for nearly a year. The structure, morphology, spectral and photocatalytic properties of TTFs have been observed and discussed detailedly. Titanium oxide films annealed in H2 have better catalytic performance than those annealed in air. The results show that Ti3+ can improve photocatalytic efficiency since the electronic structures of TTFs annealed in H2 can be finely tuned by the doped Ti3+. The existence of a Ti3+ induced an electronic band below the conduction band and narrows the band gap.