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Synthesis of the orange color pigment in the system of TiO2-SnO-ZnO by solid state reaction

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2016, 26(5), pp.181-187
  • DOI : 10.6111/JKCGCT.2016.26.5.181
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Published : October 31, 2016

Soomin Kim 1 Ungsoo Kim 1 Wooseok Cho 1

1한국세라믹기술원

Accredited

ABSTRACT

In this study, new composition of orange color pigment was developed by replacing formerly used lead and chromium with environment-friendly elements. TiO2-SnO-ZnO composite was synthesized using the solid state reaction under the reducing atmosphere with the LPG and air mixture gas. The synthesized pigments were characterized by spectrophotometer, X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and X-ray Photoelectron Spectroscopy (XPS). The colorimetric analysis of pigments exhibited color values ranging from yellow to orange-red. Five different crystalline phases were formed after the heat treatment for 4 and 6 hours. The color of pigments was strongly influenced by the crystalline structure of SnO2, having either cubic or tetragonal structure. The oxidation state study of elements revealed that the color of pigment is getting close to rYR with the increase of Sn 4+ ratio.

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