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Photoelectrochemical and Spectroscopic Studies of Colloidal Nano-Particles of Mixed TiO2/V2O5 Metal-Oxide Semiconductors

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DOI: 10.4236/msa.2012.35039    3,656 Downloads   6,012 Views   Citations

ABSTRACT

Due to its importance in hydrogen production during the photolysis process of aqueous suspensions process, mixed TiO2/V2O5 metal-oxide semiconductors were prepared and subjected to crystal structure investigation using X-ray technique. The photoelectrochemical behavior of these TiO2/V2O5 was investigated by photolysis of aqueous suspensions of these oxides containing [Fe(CN)6]4-. X-ray diffraction analysis indicated that the TiO2 crystallites grow in the (1 0 1) direction, while The V2O5 crystallites seem to be growing in the (4 2 0) direction, with increasing concentration of V2O5. Photolysis studies show that photochemical activities that maintained the [Fe(CN)6]4/[Fe(CN)6]3- redox reversibility increased by increasing V2O5 up to 50% and then decreased at greater percentages. Aqueous nano systems used in these studies retained their stability as indicated by the reproducibility of their photo-catalytic activities.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

K. K. Kasem, A. Finley, J. Folberth, M. Syed and E. Kirkpatrick, "Photoelectrochemical and Spectroscopic Studies of Colloidal Nano-Particles of Mixed TiO2/V2O5 Metal-Oxide Semiconductors," Materials Sciences and Applications, Vol. 3 No. 5, 2012, pp. 265-271. doi: 10.4236/msa.2012.35039.

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