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Facile synthesis and characteristics of monodispersed ZnGa2O4 microsphere via solvothermal method

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2016, 26(3), pp.109-114
  • DOI : 10.6111/JKCGCT.2016.26.3.109
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : April 8, 2016
  • Accepted : May 27, 2016
  • Published : June 30, 2016

Moo Hyun Woo 1 Bong Kyun Kang 1 YOON, DAEHO 1

1성균관대학교

Accredited

ABSTRACT

Monodispersed ZnGa2O4 microspheres were synthesized by a facile two-step process consisting of a solvothermal method and calcination process. The prepared monodispersed ZnGa2O4 microspheres were aggregated into 3D microstructures by self-assembly with a large number of small ZnGa2O4 particles generated in nucleation. This nucleation and self-assembly making hierarchical microstructures were depended on the concentration of PEG (polyethylene glycol) due to CAC (critical aggregation concentration) theory. And also we controlled the amount of zinc acetate to make pure ZnGa2O4 phase. Additionally, to fix the optimized calcination condition, sample was characterized by TG-DTA to prove the thermal property in the calcination process and by FT-IR to identify the changes of functional group bonding between each element of the ZnGa2O4 precursor and oxide calcined at 900 o C for 1 h.

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