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Local structure and optical absorption characteristic investigation on Fe doped TiO2 nanoparticles
Zhao, TX; Feng, YJ; Huang, JH; He, JF; Liu, QH; Pan, ZY; Wu, ZY; Wu ZY(吴自玉)
2015
发表期刊CHINESE PHYSICS C
卷号39期号:2页码:28001
通讯作者吴自玉
文章类型Article
摘要The local structures and optical absorption characteristics of Fe doped TiO2 nanoparticles synthesized by the sol-gel method were characterized by X-ray diffraction (XRD), X-ray absorption fine structure spectroscopy (XAFS) and ultraviolet-visible absorption spectroscopy (UV-Vis). XRD patterns show that all Fe-doped TiO2 samples have the characteristic anatase structure. Accurate Fe and Ti K-edge EXAFS analysis further reveal that all Fe atoms replace Ti atoms in the anatase lattice. The analysis of UV-Vis data shows a red shift to the visible range. According to the above results, we claim that substitutional Fe atoms lead to the formation of structural defects and new intermediate energy levels appear, narrowing the band gap and extending the optical absorption edge towards the visible region.
关键词titanium dioxide local structure photocatalysis
学科领域Physics
DOI10.1088/1674-1137/39/2/028001
收录类别SCI
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000349740400016
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228113
专题多学科研究中心
推荐引用方式
GB/T 7714
Zhao, TX,Feng, YJ,Huang, JH,et al. Local structure and optical absorption characteristic investigation on Fe doped TiO2 nanoparticles[J]. CHINESE PHYSICS C,2015,39(2):28001.
APA Zhao, TX.,Feng, YJ.,Huang, JH.,He, JF.,Liu, QH.,...&吴自玉.(2015).Local structure and optical absorption characteristic investigation on Fe doped TiO2 nanoparticles.CHINESE PHYSICS C,39(2),28001.
MLA Zhao, TX,et al."Local structure and optical absorption characteristic investigation on Fe doped TiO2 nanoparticles".CHINESE PHYSICS C 39.2(2015):28001.
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