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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 SnO 2 , 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.

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

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