X-RAY ABSORPTION AND EMISSION STUDY OF NITROGEN-DOPED TITANIA NANOPARTICLES

被引：0

作者：

Chen, Xiaobo ^{[2
]}

Burda, Clemens ^{[2
]}

Guo, Jinghua ^{[1
]}

Smith, Kevin E. ^{[3
]}

Glans, Per-Anders ^{[3
,4
]}

Learmonth, Timothy ^{[3
,4
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[2] Case Western Reserve Univ, Dept Chem, Ctr Chem Dynam & Nanomat Res, Cleveland, OH 44106 USA

[3] Boston Univ, Dept Phys, Boston, MA 02215 USA

[4] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA USA

来源：

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING | 2010年 / 35卷 / 1C期

关键词：

x-ray absorption spectroscopy; x-ray emission spectroscopy; nanostructured TiO2; nitrogen doping; VISIBLE-LIGHT; SYNCHROTRON-RADIATION; TIO2; SPECTROSCOPY; PHOTOCATALYSIS; OXIDES; NANOCATALYSTS; NANOCRYSTALS; CHEMISTRY; OXIDATION;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Nitrogen-doped TiO2 nanoparticles with visible-light absorption properties were investigated with x-ray absorption and emission spectroscopy. The results indicate the substitution of nitrogen on the oxygen sites which are bonded to titanium atoms in the TiO2 host. The nitrogen dopant does not apparently change the crystal field nor the contribution of the O orbitals to the electronic structure of the TiO2 host, but alters slightly the Ti component of the electronic structure of the TiO2 host. Such a doping effect is likely to be the explanation for the visible-light absorption properties of the nitrogen-doped TiO2 nanoparticles.

引用

页码：65 / 71

页数：7

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