Microwave Heating Preparation of Agmodified TiO2 for Photocatalytic Degradation of Gaseous Toluene

doi:10.3724/SP.J.1077.2010.00365

Abstract

Abstract: Using Ti(OBu)₄ as titanium source, Agmodified TiO₂ was prepared by the microwave heating method and the hydrothermal ethod, respectively, and was characterized by Xray diffraction (XRD), Xray fluorescence (XRF), ultravioletvisible diffuse reflectance spectroscope (UV-Vis) and scanning electron microscope (SEM). The photocatalytic activity of the samples was tested in the degradation of gaseous toluene under UV and visible light irradiation, respectively. The results showed that the presence of Ag promoted the phase transformation of TiO2 from anatase to other phases. Compared with the hydrothermal method, the microwave heating method had more positive effect on the formation of Agmodified TiO₂ with smaller crystallite size (16.4nm) and aggregate (80-200nm), more phases structure (anatase, rutile and brookite), richer channel structure, and lower band gap energy (2.87eV). Furthermore, Agmodified TiO₂ prepared by the microwave heating method exhibited a better photocatalytic activity in the degradation of toluene under UV or visible light irradiation.

Key words: titanium dioxide, microwave, Agmodified

CLC Number:

O643

LI Xiao-Bin,LU Xiao-Hua. Microwave Heating Preparation of Agmodified TiO₂ for Photocatalytic Degradation of Gaseous Toluene[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2010.00365.

References

[1］Hoffman M R, Martin S T, Choi W Y, et al. Environmental applications of semiconductor photocatalysis. Chemical Reviews, 1995, 95(1): 69-96.
［2］Sun B, Reddy E P, Smirniotis P G. Visible light Cr(Ⅳ) reduction and organic chemical oxidation by TiO₂ photocatalysis. Environmental Science & Technology, 2005, 39(16): 6251-6259.
［3］Wu Z B, Dong F, Zhao W R, et al. Visible light induced electron transfer process over nitrogen doped TiO₂ nanocrystals prepared by oxidation of titanium nitride. Journal of Hazardous Materials, 2008, 157(1): 57-63.
［4］Rengaraj S, Li X Z. Enhanced photocatalytic activity of TiO₂ by doping with Ag for degradation of 2,4,6trichlorophenol in aqueous suspension. Journal of Molecular Catalysis A: Chemical, 2006, 243(1): 60-67.
［5］Tada H, Ishida T, Takao A, et al. Drastic enhancement of TiO₂photocatalyzed reduction of nitrobenzene by loading Ag clusters. Langmuir, 2004, 20(19): 7898-7900.
［6］Miao L, Ina Y, Tanemura S, et al. Fabrication and photochromic study of titanate nanotubes loaded with silver nanoparticles. Surface Science, 2007, 601(13): 2792-2799.
［7］He X, Zhao X J, Liu B S. The synthesis and kinetic growth of anisotropic silver particles loaded on TiO2 surface by photoelectrochemical reduction method. Applied Surface Science, 2008, 254(6): 1705-1709.
［8］Rodriguez J, Gomez M, Lindquist S E, et al. Photoelectrocatalytic degradation of 4chlorophenol over sputter deposited Ti oxide films. Thin Solid Films, 2000, 360(1/2): 250-255.
［9］Zhang J M, Wei X M, Xin H. Energy analysis for (111) twist grain boundary in noble metals. Applied Surface Science, 2005, 243(1-4): 1-6.
［10］Bykov Y V, Rybakov K I, Semenov V E. Hightemperature microwave processing of material. Journal of Physics D: Applied Physics, 2001, 34(13): 55-75.
［11］Yamamoto T, Wada Y, Yin H B, et al. Microwavedriven polyol method for preparation of TiO₂ nanocrystallites. Chemistry Letters, 2002, 31(10): 964-965.
［12］Khan M A, Woo S I, Yang O B. Hydrothermally stabilized Fe(Ⅲ) doped titania active under visible light for water splitting reaction. International Journal of Hydrogen Energy, 2008, 33(20): 53455351.
［13］Yu J G, Xiong J F, Cheng B, et al. Fabrication and characterization of AgTiO2 multiphase nanocomposite thin films with enhanced photocatalytic activity. Applied Catalysis B: Environmental, 2005, 60(3/4): 211-221.
［14］Baghurst D R, Mingos D M P. Application of microwaveheating techniques for the synthesis of solidstate inorganiccompounds. Journal of the Chemical SocietyChemical Communications, 1988(12): 829-830.
［15］Oman D M, Dugan K M, Killian J L, et al. Device performance characterization and junction mechanisms in CdTe/CdS solar cells. Solar Energy Materials and Solar Cells, 1999, 58(4): 361-373.
［16］Rao K V S, Lavrine B, Boule P. Influence of metallic species on TiO2 for the photocatalytic degradation of dyes and dye intermediates. Journal of Photochemistry and Photobiology A: Chemistry, 2003, 154(2/3): 189-193.
［17］Hamal D B, Klabunde K J. Synthesis, characterization, and visible light activity of new nanoparticle photocatalysts based on silver, carbon, and sulfur-doped TiO₂. Journal of Colloid and Interface Science, 2007, 311(2): 514-522.

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Microwave Heating Preparation of Agmodified TiO₂ for Photocatalytic Degradation of Gaseous Toluene

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