Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Effect of Precursor Concentration on the Structural, Morphological, and Optical Properties of TiO2 Nano-Flowers

  • Anwar, M.S. (School of Materials Science and Engineering, Changwon National University) ;
  • Danish, Rehan (School of Materials Science and Engineering, Changwon National University) ;
  • Park, Keun Young (School of Materials Science and Engineering, Changwon National University) ;
  • Koo, Bon Heun (School of Materials Science and Engineering, Changwon National University)
  • Received : 2015.03.24
  • Accepted : 2015.05.07
  • Published : 2015.05.27
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Abstract

The effect of precursor concentration on the structural, morphological, and optical properties of $TiO_2$nano-flowers was investigated in this study. An increase in crystallite size was observed with an increase in the concentration of the precursor (titanium butoxide). The FE-SEM micrographs of the as-prepared samples show a three-dimensional flower-like morphology. The flowers consist of several nanorods coming out of a single core and have very sharp edges. Also, the variation in the aspect ratio of the nanostructure was observed with the concentration of the precursor. The photocatalytic properties of the samples show that the sample that has a high aspect ratio (AR~9) has a much better photocatalytic activity compared to the nano-crystal with a low aspect ratio (AR~6.1). It is believed that the excellent photocatalytic performance and short time synthesis of $TiO_2$nano-flowers using the microwave hydrothermal method can have potential applications in the field of photocatalysis.

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References

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