| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Silver-Doping Induced Lattice Distortion in TiO2 Nanoparticles |
| WU Xue-Wei1,2, WU Da-Jian1, LIU Xiao-Jun1 |
| 1Department of Electronic Science and Engineering, Key Lab of Modern Acoustics of MOE, Nanjing University, Nanjing 2100932State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049 |
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| Cite this article: |
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WU Xue-Wei, WU Da-Jian, LIU Xiao-Jun 2009 Chin. Phys. Lett. 26 077809 |
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Abstract The Ag-doping effects on TiO2 nanoparticles are investigated by means of x-ray diffraction (XRD) and Raman scattering spectroscopy. XRD and Raman results indicate that Ag-doping stabilizes the rutile phase in TiO2. We find an Ag-doping induced lattice expansion in both anatase and rutile phases. The Ag-doping has different influences on the lattice distortion for anatase and rutile phases, that is, the c/a-value for the anatase phase decreases with 0.5% Ag-doping and then increases with 1% Ag-doping while that for the rutile phase shows a gradual increase with increasing Ag-doping. We have ascribed the different variations of lattice distortion due to Ag-doping to the change of interfacial interaction between the anatase and rutile phases induced by different Ag concentrations.
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| Keywords:
78.67.Bf
64.70.Nd
78.30.-j
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Received: 27 April 2009
Published: 02 July 2009
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| PACS: |
78.67.Bf
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(Nanocrystals, nanoparticles, and nanoclusters)
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64.70.Nd
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(Structural transitions in nanoscale materials)
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78.30.-j
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(Infrared and Raman spectra)
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[1] Fujishima A and Honda K 1972 Nature 238 5551
[2] Andersson M, \"{Osterlund L, Ljungstr\"{om S andPalmqvist A 2002 J. Phys. Chem. B 106 10674
[3] Weissmann M and Errico L A 2007 Physica B 398179
[4] Djerdj I and Tonejc A M 2006 J. Alloys Compd. 413 159
[5] Nuansing W, Ninmuang S, Jarernboon W, Maensiri S andSeraphin S 2006 Mater. Sci. Eng. B 131 147
[6] Samuel V, Pasricha R and Ravi V 2005 Ceram. Int. 31 555
[7] Ren L, Huang X T, Sun F L and He X 2007 Mater. Lett. 61 427
[8] Bacsa R, Kiwi J, Ohno T, Albers P and Nadtochenko V 2005 J. Phys. Chem. B 109 5994
[9] Asahi R, Morikawa T, Ohwaki T, Aoki K and Taga Y 2001 Science 293 269
[10] Colmenares J C, Aramend\'{\ia M A, Marinas A, Marinas JM and Urbano F J 2006 Appl. Catal. A 306 120
[11] Zhao G, Kozuka H and Yoko T 1996 Thin Solid Films 277 147
[12] Herrmann J M, Tahiri H, Ait-Ichou Y, Lassaletta G,Gonzalez-Elipe A R and Fernandez A 1997 Appl. Catal. B 13 219
[13] Xin B F, Ren Z Y, Hu H Y, Zhang X Y, Dong C L, Shi K Y,Jing L Q and Fu H G 2005 Appl. Surf. Sci. 252 2050
[14] Liu Y, Liu C Y, Zhang Z Y and Wang C Y 2001 Spectrochim. Acta A 57 35
[15] Zhou Y, Wang C Y, Liu H J, Zhu Y R, Chen Z Y 1999 Mater. Sci. Eng. B 67 95
[16] Park M S and Kang M 2008 Mater. Lett. 62 183
[17] Sena S, Mahanty S, Roy S, Heintz O, Bourgeois S andChaumont D 2005 Thin Solid Films 474 245
[18] Chang C C, Lin C K, Chan C C, Hsu C S and Chen C Y 2006 Thin Solid Films 494 274
[19] Xin B F, Jing L Q, Ren Z Y, Wang B Q and Fu H G 2005 J. Phys. Chem. B 109 2805
[20] Yu J G, Xiong J F, Cheng B and Liu S W 2005 Appl.Catal. B 60 211
[21] Cullity B D 1978 Elements of X-ray Diffraction(Massachustts: Addison-Wesley) p 102
[22] Ohno T et al 2004 Appl. Catal. A 265 115
[23] Li X H S, Fryxell G E, Wang C M and Engelhard M H 2008 Microporous Mesoporous Mater. 111 639
[24] Mo S D and Ching W Y 1995 Phys. Rev. B 5113023
[25] Orendorz A, Brodyanski A, L\"{osch J, Bai L H, Chen ZH, Le Y K, Ziegler C and Gnaser H 2007 Surf. Sci. 6014390 |
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