10.1007/s40097-017-0215-8

Perforated ZnO nanoflakes as a new feature of ZnO achieved by the hydrothermal-assisted sol–gel technique

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  • Zahra Khaghanpour1,
  • Sanaz Naghibi*1,
  1. Department of Materials Engineering, Shahreza Branch, Islamic Azad University, Shahreza, Isfahan Province, IR
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Published in Issue 23-01-2017

How to Cite

Khaghanpour, Z., & Naghibi, S. (2017). Perforated ZnO nanoflakes as a new feature of ZnO achieved by the hydrothermal-assisted sol–gel technique. Journal of Nanostructure in Chemistry, 7(1 (March 2017). https://doi.org/10.1007/s40097-017-0215-8
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Abstract

Abstract The perforated ZnO nanoflakes with high degree of crystallinity and uniformity were synthesized via the hydrothermal-assisted sol–gel technique without any template. ZnCl 2 was used as a Zn-containing precursor, causing the oriented growth of particles. The observation of a hole on the facet of the as-synthesized particles was discussed in this work. XRD, TEM, and DRS were used to investigate the prepared powder and a simple mechanism was suggested to explain the hole formation on the surface of nanoflakes. As a result, the synthesized powder included pure ZnO with direct band gap energy of 3.24 eV. The range of particle size was within 1 µm in diameter and <50 nm in thickness. A circle hole with 300–500 nm in diameter was observed on the facet of the as-synthesized particles.

Keywords

  • ZnO nanoflakes,
  • Perforated flake,
  • Hydrothermal,
  • ZnCl2,
  • TEM
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