以TiCl3为钛源,在140℃下采用溶剂热法在不同有机胺体系中一步合成二氧化钛晶体.采用X射线衍射、紫外-可见吸收光谱、元素分析、傅里叶变换红外光谱以及X射线光电子能谱对所得粉体进行了表征.结果表明,该方法制备的二氧化钛晶体吸收带边明显红移至可见光区,其中,在乙二胺体系中制备的二氧化钛晶体对可见光的吸收明显优于三乙胺和二乙胺体系.在乙二胺体系中制备的二氧化钛对可见光响应的原因可归结为部分氮原子取代氧原子进入了二氧化钛晶体结构中.苯酚的光催化降解实验表明,该掺氮型二氧化钛在可见光照射下具有较好的光催化活性.
参考文献
| [1] | Gole J L;Stout J D;Burda C;Lou Y Chen X .[J].Journal of Physical Chemistry B,2004,108(04):1230. |
| [2] | Sato S;Nakamura R;Abe S .Visible-light sensitization of TiO2 photocatalysts by wet-method N doping[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2005(1/2):131-137. |
| [3] | Sano T.;Negishi N.;Koike K.;Takeuchi K.;Matsuzawa S. .Preparation of a visible light-responsive photocatalyst from a complex of Ti4+ with a nitrogen-containing ligand[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2004(3):380-384. |
| [4] | Chatterjee D;Mahata A .[J].Applied Catalysis B:Environmental,2001,33(02):119. |
| [5] | Ghosh A K;Maruska H P .[J].Journal of the Electrochemical Society,1977,124(10):1516. |
| [6] | Choi W;Termin A;Hoffman M R .[J].Journal of Physical Chemistry,1994,98(51):13669. |
| [7] | Asahi R;Morikawa T;Ohwaki T;Aoki K Taga Y .[J].Science,2001,293(5528):269. |
| [8] | Lindgren T;Mwabora J M;Avendamo E;Jonsson J Hoel A Granqvist C-G Lindquist S-E .[J].Journal of Physical Chemistry B,2003,107(24):5709. |
| [9] | Sakthivel S;Kisch H .[J].ChemPhysChem:A European Journal of Chemical Physics and Physical Chemistry,2003,4(05):487. |
| [10] | Justicia I;Ordejon P;Canto G;Mozos J L Fraxedas J Battiston G A Gerbasi R Figueras A .[J].Advanced Materials,2002,14(19):1399. |
| [11] | Kosowska B;Mozia S;Morawski AW;Grzmil B;Janus M;Kalucki K .The preparation of TiO2-nitrogen doped by calcination of TiO2 center dot xH(2)O under ammonia atmosphere for visible light photocatalysis[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2005(3):269-280. |
| [12] | Chen X B;Burda C .[J].Journal of Physical Chemistry B,2004,108(40):15446. |
| [13] | Sathish M;Viswanathan B;Viswanath R P;Gopinath C S .[J].Chemistry of Materials,2005,17(25):6349. |
| [14] | Zhu H Y;Lan Y;Gao X P;Ringer S P Zheng Z F Song D Y Zhao J C .[J].Journal of the American Chemical Society,2005,127(18):6730. |
| [15] | Zhang Q H;Gao L;Guo J K .[J].Applied Catalysis B:Environmental,2000,26(03):207. |
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