采用溶胶凝胶法在石英基体上制备了纯TiO2薄膜,并通过离子注入方法对TiO2薄膜进行Fe掺杂改性以促进TiO2薄膜光吸收边红移,提高其光吸收性能.利用XRD,XPS及UV-vis对不同注入剂量的Fe掺杂TiO2复合薄膜的晶相结构、原子化学态以及光吸收性能进行了表征.XRD侧试结果表明,溶胶凝胶法制得的TiO2薄膜为锐钛矿相,经Fe离子注入后,复合TiO2薄膜经退火后锐钛矿相消失,金红石相出现,因为Fe3+离子进入晶胞代替Ti4+,在TiO2基体形成铁的固溶体,结果氧空缺形成促进了TiO2从锐钛矿向金红石的转变;XPS测试结果表明.经过退火Fe在复合TiO2薄膜中以Fe和Fe3O4形式存在,说明Fe离子进入TiO2晶格取代Ti,但Fe及其氧化物晶体峰未在XRD上观测到,说明两者结晶程度不高,以非晶形态存在;通过对溶胶凝胶法制备的TiO2薄膜注入不同剂量Fe的复合薄膜的紫外-可见吸收光谱分析可知,由于复合薄膜中Fe3O4的存在,使复合薄膜紫外-可见光吸收边发生了红移,并随注入剂量增加红移增大,根据红移效果确定Fe的适宜注入剂量为1x10~17cm-2.
参考文献
| [1] | 王武育,王溪晶,杨太礼.TiO2薄膜的光电性能及应用[J].稀有金属,2008(06):781-788. |
| [2] | 孙俊英,孟大维,刘卫平,汪新星,王革.稀土离子（La3+,Eu3+）掺杂纳米TiO2的光催化性能[J].稀有金属,2008(04):497-501. |
| [3] | Umebayashi Tsutomu;Yamalci Tetauys;Itoh Hisayaehi;Asai KeisuEe .Analysis of electronic struchues of 3d transition metal-doped TiO2 based on band calculations[J].Journal of Physics and Chemistry of Solids,2002,63(10):1909. |
| [4] | Tong Tianzhong;Zhang Jinlong;Tian Baozhu;Chen Feng,He Dannong .Preparation of Fe3+-doped TiO2 catalysts by con-alytic activity for methyl orange degradation[J].Journal of Hazard Ma-ter,2008,155(03):572. |
| [5] | Fan Xiaoxing;Chen Xinyi;Zhu Shaopeng;Li Zhaosheng,Yu Tao,Ye Jinhua,Zou Zhigang .The structural,physical and photocatalytic properties of the mesoporous Cr-doped TiO2[J].Journal of Molecular Catalysis A:Chemical,2008,284(1-2):155. |
| [6] | Lam Ringo C W;Leung Michael K H;Leung Dennis Y C;Vrij-moed Lilian L P,Yam W C,Ng S P .Visible-light-assisted photocatalytic degradation of gaseous formaldehyde by parallel-plate reactor coated with Cr ion-implanted TiO2 thin film[J].Solar Energy Materials & Solar Cells,2007,91:54. |
| [7] | Ramos S M M;Bonardi N;Brenier R .Evidence of a new phase formation(BaTi4O9)by barium implantation into TiO2[J].Journal of Crystal Growth,1994,143(3-4):227. |
| [8] | Irie H;Watanabe Y;Hashimoto K .Nitrogen-concentration de-pendence on photocatalytic activity of TiO2-xNx powders[J].Journal of Physical Chemistry B,2003,107:5483. |
| [9] | Khan Shahed U M;Al-Shahry Mofareh;Ingler William B Jr .Efficient photochemical water splitting by a chemically modified n-TiO2[J].Science,2002,297(5590):2243. |
| [10] | Dowd A.;Elliman RG.;Luther-Davies B.;Samoc M.;FitzGerald JD.;Llewellyn D. .Physical and optical characterisation of Ge-implanted silica[J].Nuclear Instruments and Methods in Physics Research, Section B. Beam Interactions with Materials and Atoms,2001(0):637-640. |
| [11] | 堵国君,王彦敏,胡培广,刘宏,刘铎,王继扬.ZnO@TiO_2纳米带表面异质结构的制备及表征[J].稀有金属,2009(06):836-840. |
| [12] | Jho Jaehan;Kim Donghyun;Kim Sunjae;Lee Kyuag Sub .Synthesis and photocatalytic property of a mixture of anatase and rutile TiO2 doped with Fe by mechanical alloying process[J].Journal of Alloys and Compounds,2008,459(1-2):386. |
| [13] | 李凡修,陆晓华,梅平.金属离子掺杂对纳米TiO2晶型转变影响作用机制的研究进展[J].材料导报,2006(09):13-15,25. |
| [14] | 胡永俊,成晓玲,胡社军,曾鹏,魏志钢.氧氮比对真空电弧沉积TiO2-xNx薄膜结构和性能的影响[J].稀有金属,2010(04):557-562. |
| [15] | 王海,程斌,宋小平,刘芬.Fe-Ni合金薄膜组成准确测量的XPS研究[J].稀有金属,2010(03):431-435. |
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