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Journal of Inorganic Materials

Journal of Inorganic Materials >

2010 , Vol. 25 >Issue 3: 285 - 288

DOI: https://doi.org/10.3724/SP.J.1077.2010.00285

Research Paper

Photoelectrocatalytic Performance of Ag/TiO2-xNx Nanotube

  • WAN Bin ,
  • CHEN Ming-Bo ,
  • ZHOU Xi-Ying ,
  • WANG Wei ,
  • LI Wen-Ge
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  • 1. School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China; 2. Shanghai Institute of SpacePower Source, Shanghai 200233, China

Received date: 2009-05-26

  Revised date: 2009-07-12

  Online published: 2010-03-20

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Abstract

High density, well ordered,vertically aligned and uniform titanium oxide nanotube arrays were fabricated on the surface of pure titanium sheet by direct electrochemical anodic oxidation under 20V in electrolyte of 0.5wt％NaF +1mol/L Na2SO4. Then TiO2 nano-tube array were annealed in ammonia for 2h, Ag nano-particles were deposited photocatalytically on the N-doped TiO2 nanotube surface. XRD, SEM and XPS techniques were used to characterize titanium oxide nanotube arrays. Results show that photoelectrondegradation efficiency of Ag/TiO 2-x Nx nano-tubes under UV-light is about 39.68% higher than that of TiO2 nanotubes; and photoelectrodegradation efficiency of Ag/TiO 2-x Nx nano-tubes under visible light is 12% higher than that of TiO2 nano-tubes. After photoelectrondegradation under visible hight for 16h, the degradation rate of mathylene blue with initial concentration of 10×10-6 mol/L is 50.53%.

Key words： anodic oxidation; TiO2 nano-tubes; doping; photoelectrocatalytic degradation

Cite this article

WAN Bin , CHEN Ming-Bo , ZHOU Xi-Ying , WANG Wei , LI Wen-Ge . Photoelectrocatalytic Performance of Ag/TiO2-xNx Nanotube[J]. Journal of Inorganic Materials, 2010 , 25(3) : 285 -288 . DOI: 10.3724/SP.J.1077.2010.00285

References

［1］Kudo A, Sekizawa M. Photocatalytic H2 evolution under visible light irradiation on Ni-doped ZnS photocatalyst. J.Chem. Commun., 2000: 1371-1372.

［2］Sayama K, Arakawa H. Effect of carbonate salt addition on the photocatalytic decomposition of liquid water over Pt-TiO2 catalyst. J. Chem.Soc., Faraday Trans., 1997, 93(8): 1647-1655.

［3］Yamashita H, Harada M, Misaka J, et al. Degradation of propanol diluted in water under visible light irradiation using metal ion-implanted titanium dioxide photocatalysts. Journal of Photochemistry and Photobiology A:Chemistry, 2002,148(1/2/3):257-261.

［4］Hagfeldt A, Gratze M. Light-induced redox reactions in nanocrystalline systems. Chem. Rev., 1995, 95(1): 49-68.

［5］Asahi R, Morikawa T, Ohwaki T, et al. Visiblelight photocatalysis in nitrogen-doped titanium oxides. Science, 2001, 293(5528): 269-271.

［6］Spanhel L, Weller H, Henglein A. Photochemistry of semiconductor colloids. 22. Electron injection from illuminated CdS into attached TiO2 and ZnO particles. J. Am. Chem. Soc., 1987, 109(22): 6632-6635.

［7］Yang J C, Kim Y C, Shul Y G, et al. Characterization of photoreduced Pt/TiO2 and decomposition of dichloroacetic acid over photoreduced Pt/TiO2 catalysts.Appl. Surf.Sci., 1997, 121/122: 525-529.

［8］Vamathevan V, Tse H, Amal R, et al. Effects of Fe 3+ and Ag+ ions on the photocatalytic degradation of sucrose in water. Catal. Today, 2001, 68(1/2/3): 201-208.

［9］Xi C, Chen Z, Li Q, et al. Effects of H+ , Cl- and CH3COOH on the photocatalytic conversion of PtCl2-6 in aqueous TiO2 dispersion. Journal of Photochemistry and Photobiology A:Chemistry, 1995, 87 (3): 249-255.

［10］Li X Z, Li F B. Study of Au/Au 3+-TiO2 photocatalysts toward visible photooxidation for water and wastewater treatment. Environ. Sci. Tech., 2001, 35(11): 2381-2387.

［11］Dalven R. Introduction to Applied Solid State Physics, 2nd ed. New York: Plenum Press, 1990, Chapter4:111-128.

［12］万 斌, 沈嘉年, 陈鸣波, 等(WAN Bin, et al). 阳极氧化制备TiO2 纳米管及其光催化性能. 化学学报(Acta Chim. Sinica), 2008, 66(11): 1301-1306.

［13］万 斌, 沈嘉年,陈鸣波, 等. 阳极氧化制备TiO2 纳米管及其光催化性能. 应用化学, 2008, 25(6): 665-668

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