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Characterization and Photocatalytic Efficiency of Palladium Doped-TiO2 Nanoparticles

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DOI: 10.4236/anp.2013.24051    5,570 Downloads   9,297 Views   Citations


The effect of modification of TiO2 with different palladium concentrations on its characteristics and photocatalytic efficiency was studied. Photo catalysts were prepared by the sol-gel method and were characterized by different techniques. A uniform distribution of palladium through the TiO2 matrix was observed. The X-ray diffraction patterns of the pure and palladium doped TiO2 were found to be quiet similar and the average particle size was not significantly changed. As a result of palladium doping, the UV-Vis analysis showed a red shift in the onset of wavelength of absorbance and the band gap was changed from 3.39 to 3.06 eV for the 0.3 wt% Pd/TiO2 sample. Photo catalytic removal study of formic acid showed that the 0.3 wt% palladium doped photocatalyst exhibits the highest efficiency among the different palladium doped photocatalysts using sun light as the radiation source.

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The authors declare no conflicts of interest.

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Abd El-Rady, A. , Abd El-Sadek, M. , El-Sayed Breky, M. and Assaf, F. (2013) Characterization and Photocatalytic Efficiency of Palladium Doped-TiO2 Nanoparticles. Advances in Nanoparticles, 2, 372-377. doi: 10.4236/anp.2013.24051.


[1] D. A. Tryk, A. Fujishima and K. Honda, “Recent Topics in Photoelectrochemistry: Achievements and Future Prospects,” Electrochimica Acta, Vol. 45, No. 15-16, 2000, pp. 2363-2376.
[2] M. Kunst, T. Moehl, F. Wunsch and H. Tributsch, “Optoelectronic Properties of SnO2/TiO2 Junctions,” Super Lattice Microst., Vol. 39, No. 1-4, 2006, pp. 376-380.
[3] S. M. Karvinen, “The Effects of Trace Element Doping on the Optical Properties and Photocatalytic Activity of Nanostructured Titanium Dioxide,” Industrial & Engineering Chemistry Research, Vol. 42, No. 5, 2003, pp. 1035-1043.
[4] J. Chen, S. L. Li, Z. L. Tao, Y. T. Shen and C. X. Cui, “Titanium Disulfide Nanotubes as Hydrogen-Storage Materials,” Journal of the American Chemical Society, Vol. 125, No. 18, 2003, pp. 5284-5285.
[5] A. Fujishima, X. Zhang and D. A. Tryk, “TiO2 Photocatalysis and Related Surface Phenomena,” Surface Science Reports, Vol. 63, No. 12, 2008, pp. 515-582.
[6] L. Ge and M. X. Xu, “Influences of the Pd Doping on the Visible Light Photocatalytic Activities of InVO4-TiO2 Thin Films,” Materials Science and Engineering: B, Vol. 131, No. 1-3, 2006, pp. 222-229.
[7] B. P. Xie, Y. Xiong, R. M. Chen, J. Chen and P. X. Cai, “Catalytic Activities of Pd-TiO2 Film towards the Oxidation of Formic Acid,” Catalysis Communications, Vol. 6, No. 11, 2005, pp. 699-704.
[8] X. Zhang, F. Zhang and K. Y. Chan, “The Synthesis of Pt-Modified Titanium Dioxide Thin Films by Microemulsion Templating, Their Characterization and VisibleLight Photocatalytic Properties,” Materials Chemistry and Physics, Vol. 97, No. 2-3, 2006, pp. 384-389.
[9] H. Li, B. L. Zhu, Y. F. Feng, S. R. Wang, S. M. Zhang and W. P. Huang, “Synthesis, Characterization of TiO2 Nanotubes-Supported MS (TiO2NTs@MS, M = Cd, Zn) and Their Photocatalytic Activity,” Journal of Solid State Chemistry, Vol. 180, No. 7, 2007, pp. 2136-2142.
[10] W. T. Geng and K. S. Kim, “Interplay of Local Structure and Magnetism in Co-Doped TiO2 Anatase,” Solid State Communications, Vol. 129, No. 11, 2004, pp. 741-746.
[11] J. C.-S. Wu and C.-H. Chen, “A Visible-Light Response Vanadium-Doped Titania Nanocatalyst by Sol-Gel Method,” Journal of Photochemistry and Photobiology A: Chemistry, Vol. 163, No. 3, 2004, pp. 509-515.
[12] G. Strukul, R. Gavagnin, F. Pinna, E. Modaferri, S. Perathoner, G. Centi, M. Marella and M. Tomaselli, “Use of Palladium Based Catalysts in the Hydrogenation of Nitrates in Drinking Water: From Powders to Membranes,” Catalysis Today, Vol. 55, No. 1-2, 2000, pp. 139-149.
[13] S. Castillo and T. Lopez, “Catalytic Reduction of Nitric Oxide on Pt and Rh Catalysts Supported on Alumina and Titania Synthesized by the Sol-Gel Method,” Applied Catalysis B: Environmental, Vol. 15, No. 3-4, 1998, pp. 203-209.
[14] T. Lopeze, R. Gomez, G. Pecci, P. Reyes, X. Bokhimi and O. Novaro, “Effect of pH on the Incorporation of Platinum into the Lattice of Sol-Gel Titania Phases,” Materials Letters, Vol. 40, No. 2, 1999, pp. 59-65.
[15] J. Matsuoka, R. Naruse, H. Nasu and K. Kamiya, “Preparation of Gold Microcrystal-Doped Oxide Optical Coatings through Adsorption of Tetrachloroaurate Ions on Gel Films,” Journal of Non-Crystalline Solids, Vol. 218, 1997, pp. 151-155.
[16] W. D. Kingery, H. K. Bowen and D. R. Uhlmann, “Introduction to Ceramics,” 2nd Edition, John Wiley and Sons, New York, 1976, 457p.
[17] J. L. Margrave and B. D. Kybett, “Tech. Rept. AFMOTR-65,” Air Force Materials Laboratory, Research and Technology Division, Air Force Systems Command, Wright—Patterson Air Force Base, Ohio, 1965, p. 123.
[18] A. Navrostsky and O. J. Klappa, “Transformation Enthalpies of the TiO2 Polymorphs,” J. Am. Ceram. Soc., Vol. 62, No. 7-8, 1976, pp. 356-357.
[19] H. Tada, F. Suzuki, S. Yoneda, S. Ito and H. Kobayashi, “The Effect of Nanometre-Sized Au Particle Loading on TiO2 Photocatalysed Reduction of Bis(2-dipyridyl)disulfide to 2-Mercaptopyridine by H2O,” Physical Chemistry Chemical Physics, Vol. 3, No. 7, 2001, pp. 1376-1382.
[20] J. Krysa, G. Waldner, H. Měst' ánková, J. Jirkovsky and G. Grabner, “Photocatalytic Degradation of Model Organic Pollutants on an Immobilized Particulate TiO2 Layer: Roles of Adsorption Processes and Mechanistic Complexity,” Applied Catalysis B: Environmental, Vol. 64, No. 3-4, 2006, pp. 290-301.

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