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HomeKey Engineering MaterialsKey Engineering Materials Vols. 609-610“Double Junction” of Ag-Doping TiO2 Nanotubes

“Double Junction” of Ag-Doping TiO₂ Nanotubes

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Abstract:

Ag-doping TiO₂ nanotubes (Ag-TNTs) were synthesized. A double junction is proposed, involving a Schottky junction and p-n junction (denoted as Ag-p-n junction) occurring between the Ag particles and the nanotube surface, as well as forming inside TiO₂ nanotubes, respectively. The strongly built-in electric field of the junctions promotes the separation of photo-holes and photoelectrons, enhancing the photocatalytic efficiency. Ag-TNTs were characterized by XRD and TEM. XRD results indicated that a mixture of anatase and rutile phases. The presence of a new peak at 271 cm¹ was revealed by Raman spectral analysis of Ag-TNTs.

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Micro-Nano Technology XV

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Periodical:

Key Engineering Materials (Volumes 609-610)

Pages:

175-179

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.609-610.175

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Online since:

April 2014

Authors:

Jing Ling Li*, Xiao Xia Cao, Hua Liang Yu, Yong Jiang Gan

Keywords:

Ag-Doping, Characterization, Double-Junction, TiO₂Nanotubes (NTs)

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] M. Machida, J. Yabunaka, T. Kijima, S. Matsushima and M. Arai, Electronic structure of layered tantalates photocatalysts, RbLnTa2O7 (Ln=La, Pr, Nd, and Sm), Inter. J. Inorg. Mater., 3(2001) 545-550.

DOI: 10.1016/s1466-6049(01)00071-x

[2] R. Asahi, T. Morikawa, T. Ohwaki, K. Aoki and Y. Taga, Visible-light photocatalysis in nitrogen-doped titanium oxides, Science, 293(2001) 269-271.

DOI: 10.1126/science.1061051

[3] N. F. Zainudin, A. Z. Abdullah and A. R. Mohamed, Characteristics of supported nano-TiO2/ZSM-5/silica gel (SNTZS): Photocatalytic degradation of phenol, J. Hazard Mater. , 174(2010) 299-306.

DOI: 10.1016/j.jhazmat.2009.09.051

[4] W. Su, S.S. Wei, S.Q. Hu, J.X. Tang, Preparation of TiO2/Ag colloids with ultraviolet resistance and antibacterial property using short chain polyethylene glycol, J Hazard Mater. 172(2009) 716-720.

DOI: 10.1016/j.jhazmat.2009.07.056

[5] W. C. Lin, C.N. Chen, T. T. Tseng, M. H. Wei, J.H. Hsieh and W. J. J. Tseng, Micellar layer-by-layer synthesis of TiO2/Ag hybrid particles for bactericidaland photocatalytic activities,J. Eur. Ceram. Soc. 30(2010) 2849-2857.

DOI: 10.1016/j.jeurceramsoc.2009.12.016

[6] D. V. Bavykin, A. A. Lapkin, P.K. Plucinski, Jens M. Friedrich and F. C. Walsh, Reversible storage of molecular hydrogen by sorption into multilayered TiO2 nanotubes, J. Phys. Chem. B, 109(2005) 19422-19427.

DOI: 10.1021/jp0536394

[7] T. Y. Peng, Akira Hasegawa, J. R. Qiu and Kazuyuki Hira, Fabrication of titania tubules with high surface area and well-developed mesostructural walls by surfactant-mediatedtemplating method, Chem. Mater. 15(2003) 2011-(2016).

DOI: 10.1021/cm020828f

[8] S. H. Lim, J. Z. Luo, Z. Y. Zhong , W. Ji and J. Y. Lin, Room-temperature hydrogen uptake by TiO 2 nanotubes, Inorg. Chem. 44(2005) 4124-4126.

DOI: 10.1021/ic0501723

[9] O. K. Varghese, D. W. Gong, M. Paulose, K. G. Ong and C. A. Grimes, Hydrogen sensing using titania nanotubes, Sens. Actuators B. 93(2003) 338-344.

DOI: 10.1016/s0925-4005(03)00222-3

[10] J. L. Li, W. Z. Chen, J. J. Bi, D. J. Guo, B. C. Yang, Synthesis of Ag-TiO2 nanotubes in ambient atmosphere and kinetics of photocatalytic reaction, Chin. J. Sens. Actuators. 23(2010) 617-620.

[11] W. Shockley, The theory of pn junctions in semiconductors and pn junction transistors, Bell Syst. Tech. J. 28(1949) 435-489.

DOI: 10.1002/j.1538-7305.1949.tb03645.x

[12] A. Hagfeldtt, M. Gratzel, Light-induced redox reactions in ranocrystalline systems, Chem. Rev. 95(1995) 49-68.

[13] A. L. Linsebigler, G.G. Lu, and J. T. Yates, Jr , Photocatalysis on TiO2 surfaces: principles, mechanisms, and selected results, Chem. Rev. 95(1995) 735-758.

DOI: 10.1021/cr00035a013

[14] CRC handbook on Chemistry and Physics version. 2008, 12-114.

[17] X. B. Chen, S. S. Mao, Titanium dioxide nanomaterials: synthesis, properties, modifications, and applications, Chem. Rev., 107(2007) 2891-2959.

DOI: 10.1021/cr0500535

[18] L. Qian, Z. L. Du, S.Y. Yang, Z. S. Jin., Raman study of titania nanotube by soft chemical process, J. Mole. Struc. 749 (2005) 103-107.

DOI: 10.1016/j.molstruc.2005.04.002