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Preparation and characterization of mixed iron–titanium oxide nanostructure

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Abstract

The Fe2O3–TiO2 mixed nanostructure was grown from Fe/Ti metallic source using evaporation–condensation method. The formation of mixed Fe2O3–TiO2 nanostructures was confirmed by energy dispersive analysis of X-ray and X-ray diffraction analysis. The scanning electron microscopy showed that the samples consisted of large amounts of two kinds dispersed particulates. The small particulates had sizes in the range of 130–170 nm and the big particulates had sizes in the range of 300–800 nm. Optical properties including refractive index (n), extinction coefficient (k), energy band gap (Eg), and Urbach energy (Eu) of the mixed thin film were investigated by spectroscopic ellipsometer. The Fe2O3–TiO2 nanostructure had low n values compared to the previously reported values for Fe2O3 and TiO2, while the value of band gap (2.54 ± 0.02 eV) lied in between the band gap values of Fe2O3 and TiO2. The mixed Fe2O3–TiO2 nanostructures showed enhanced photocatalytic activities.

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Acknowledgments

This work is supported by the Deanship of Scientific Research at Qassim University under Contract No. 1646.

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Authors and Affiliations

  1. Physics Department, College of Science, Qassim University, P.O. Box 6644, Buryadh, 51452, Saudi Arabia

    S. H. Mohamed & M. El-Hagary

  2. Physics Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt

    S. H. Mohamed

  3. Physics Department, Faculty of Science, Helwan University, Helwan, Cairo, 11792, Egypt

    M. El-Hagary

  4. Chemistry Department, College of Science, Qassim University, P.O. Box 6644, Buryadh, 51452, Saudi Arabia

    Ahmed S. Radwan

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  1. S. H. Mohamed
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  2. M. El-Hagary
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  3. Ahmed S. Radwan
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Correspondence to S. H. Mohamed.

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Mohamed, S.H., El-Hagary, M. & Radwan, A.S. Preparation and characterization of mixed iron–titanium oxide nanostructure. Indian J Phys 87, 223–228 (2013). https://doi.org/10.1007/s12648-012-0207-y

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  • DOI: https://doi.org/10.1007/s12648-012-0207-y

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