硼(氮、氟)掺杂对TiO2纳米颗粒光学性能的影响

吴雪炜; 吴大建; 刘晓峻

doi:10.7498/aps.59.4788

摘要

利用X射线衍射谱、拉曼光谱和紫外-可见光吸收光谱研究了硼(氮、氟)掺杂对TiO2纳米颗粒光学性能的影响.X射线衍射谱和拉曼光谱结果表明,掺硼(氮、氟)对TiO2纳米颗粒的锐钛矿相晶体结构无明显影响,而其锐钛矿晶格出现畸变(c/a值增大),这被归因于掺杂原子对TiO2纳米颗粒表面氧原子缺位沿晶格c轴方向的占据.另外,掺硼(氮、氟)TiO2纳米颗粒吸收带红移与TiO

关键词:

The doping effects of the boron (nitrogen, fluorine) are investigated in TiO2 nanoparticles by means of X-ray diffraction (XRD), Raman and UV-Vis absorption spectroscopy. No phase change due to B (N, F)-doping in anatase-TiO2 nanoparticle was found, while significant lattice contraction and enhanced lattice distortion (large c/a-value) were observed in B (N, F)-doped TiO2 nanoparticles, which has been attributed to the occupation of the surface oxygen vacancies by B (N, F) dopants along c-axis of TiO2 crystal lattice. In addition, the absorption band shows evident red-shift for B (N, F)-doped TiO2, which may be related to the increase of lattice distortion (c/a-value) in TiO2 nanoparticles.

Keywords:

作者及机构信息

1.
南京大学电子科学与工程系,近代声学教育部重点实验室,南京 210093

基金项目: 国家自然科学基金(批准号:10874087,10874088)、高等学校博士学科点专项科研基金(批准号:200802840032)和江苏省自然科学基金(批准号:200921555)资助的课题.

Authors and contacts

1.
Key Laboratory of Modern Acoustics of Ministry of Education, Department of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China

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施引文献

[1]	Fujishima A, Honda K 1972 Nature 238 5551
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[14]	Reddy K M, Baruwati B, Jayalakshmi M, Rao M M, Manorama S V 2005 J. Solid State Chem. 178 3352
[15]	Wang J, Zhang Q W, Yin S, Sato T, Saito F 2007 J. Phys. Chem. Solids 68 189
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[19]	Yang K S, Dai Y, Huang B B 2007 Phys. Rev. B 76 195201
[20]	Xie Y, Zhao X J, Li Y Z, Zhao Q N, Zhou X D, Yuan Q H 2008 J. Solid State Chem. 181 1936
[21]	Su Y L, Zhang X W, Han S, Chen X Q, Lei L C 2007 Electrochem. Commun. 9 2291
[22]	Li Y X, Ma G F, Peng S Q, Lu G X, Li S B 2008 Appl. Surf. Sci. 254 6831
[23]	Xu J J, Ao Y H, Fu D G, Yuan C W 2008 Appl. Surf. Sci. 254 3033
[24]	Tang J W, Quan H D, Ye J H 2007 Chem. Mater. 19 116
[25]	Cong Y, Zhang J L, Chen F, Anpo M 2007 J. Phys. Chem. C 111 6976
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[27]	Burdett J K, Hughbanks T, Miller G J, Richardson J W, Smith J V 1987 J. Am. Chem. Soc. 109 3639
[28]	Li G S, Goates J B, Woodfield B F 2004 Appl. Phys. Lett. 85 2059
[29]	Asahi R, Taga Y, Mannstadt W, Freeman A J 2000 Phys. Rev. B 61 7459
[30]	Orendorz A, Brodyanski A, Lsch J, Bai L H, Chen Z H, Le Y K, Ziegler C, Gnaser H 2007 Surf. Sci. 601 4390
[31]	Li D, Haneda H, Labhsetwar N K, Hishita S, Ohashi N 2005 Chem. Phys. Lett. 401 579
[32]	Ohno T, Akiyoshi M, Umebayashi T, Asai K, Mitsui T, Matsumura M 2004 Appl. Catal. A 265 115
[33]	Miao L, Jin P, Kaneko K, Terai A, Nabatova-Gabain N, Tanemura S 2003 Appl. Surf. Sci. 212-213 255

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