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Synthesize and Characterization of Ca2CuO3 Nanostructures via a Modified Sol–Gel Method Assisted by Hydrothermal Process

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Abstract

A sol–gel-hydrothermal method was used to prepare the highly homogeneous nanopowder of Ca2CuO3 ceramic with an average diameter of about 20–30 nm. In comparison with the conventional sol–gel process, this method caused the more purity product with smaller size of particle due to a high pressure and long reaction time. Photoluminescence measurement indicated that for Ca2CuO3 nanoparticles there are two emission peaks: one sharp band at about 400 nm and one broad visible emission band. The band gap energy of Ca2CuO3 nanoparticles has been estimated to be 3.09 eV that is far above the values reported earlier. The results showed that the morphology and particle size of the synthesized samples can be obviously affected by the reaction temperature and molar ratio (w) between citric acid and calcium nitrate. In this procedure, diethylene glycol monobutyl ether was used as both the solvent and the modest surfactant.

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Acknowledgments

The authors are grateful to Council of Islamic Azad University (Science and Research Branch of Tehran), University of Kashan for supporting this work by Grant No (159271/1) and Iran National Science Foundation.

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Authors and Affiliations

  1. Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran

    S. Alikhanzadeh-Arani

  2. Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box 87317-51167, Kashan, Iran

    M. Salavati-Niasari

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  1. S. Alikhanzadeh-Arani
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  2. M. Salavati-Niasari
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Correspondence to M. Salavati-Niasari.

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Alikhanzadeh-Arani, S., Salavati-Niasari, M. Synthesize and Characterization of Ca2CuO3 Nanostructures via a Modified Sol–Gel Method Assisted by Hydrothermal Process. J Clust Sci 23, 1069–1080 (2012). https://doi.org/10.1007/s10876-012-0499-2

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