Preparation of Ta-Doped TiO2 Using Ta2O5 as the Doping Source

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 中科院强激光材料重点实验室

	Preparation of Ta-Doped TiO2 Using Ta2O5 as the Doping Source
	Xu Cheng ; Lin Di ; Niu Ji-Nan ; Qiang Ying-Huai ; Li Da-Wei ; Tao Chun-Xian
刊名	chin. phys. lett.
	2015
卷号	32 期号:8 页码:88102
通讯作者	xu, c (reprint author), china univ min & technol, sch mat sci & engn, xuzhou 221116, peoples r china.
英文摘要	a novel method for preparing ta-doped tio2 via using ta2o5 as the doping source is proposed. the preparation process combines the hydrothermal fluorination of ta2o5 and the subsequent formation of ta-doped tio2 sol. the results show that the doped sample annealed at 393 k generates an unstable intermediate nh4tiof3, which converts into anatase tio2 with the increase of temperature. after annealing at >= 673 k, the ta-doped tio2 nanocrystals with the grain size <20 nm are obtained. both the xrd and tg-dsc results confirm that ta doping prevents the anatase-rutile crystal transition of tio2. the band gap values of the doped samples, as obtained by uv-vis diffuse reflectance spectra, are smaller than that of pure anatase tio2. the first-principle pseudopotential method calculations indicate that ta5+ lies in the tio2 lattice at the interstitial position.
收录类别	SCI
语种	英语
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/13821]
专题	上海光学精密机械研究所_中科院强激光材料重点实验室
作者单位	1.[Xu Cheng 2.Lin Di 3.Niu Ji-Nan 4.Qiang Ying-Huai] China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China 5.[Li Da-Wei] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China 6.[Tao Chun-Xian] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Shanghai Key Lab Modern Opt Syst, Shanghai 200093, Peoples R China
推荐引用方式 GB/T 7714	Xu Cheng,Lin Di,Niu Ji-Nan,et al. Preparation of Ta-Doped TiO2 Using Ta2O5 as the Doping Source[J]. chin. phys. lett.,2015,32(8):88102.
APA	Xu Cheng,Lin Di,Niu Ji-Nan,Qiang Ying-Huai,Li Da-Wei,&Tao Chun-Xian.(2015).Preparation of Ta-Doped TiO2 Using Ta2O5 as the Doping Source.chin. phys. lett.,32(8),88102.
MLA	Xu Cheng,et al."Preparation of Ta-Doped TiO2 Using Ta2O5 as the Doping Source".chin. phys. lett. 32.8(2015):88102.