Preparation and Reflectance Spectrum Modulation of Cr2O3 Green Pigment by Solution Combustion Synthesis

Shuhe Ai; Huade Zheng; Jincheng Yu

doi:10.3390/ma13071540

Preparation and Reflectance Spectrum Modulation of Cr₂O₃ Green Pigment by Solution Combustion Synthesis

Materials (Basel). 2020 Mar 27;13(7):1540. doi: 10.3390/ma13071540.

Authors

Shuhe Ai^{1

2}, Huade Zheng^{1

2

3

4}, Jincheng Yu⁵

Affiliations

¹ School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China.
² South China Institute of Collaborative Innovation, Dongguan 523808, China.
³ National Engineering Research Center for Tissue Restoration and Reconstruction, South China University, of Technology, Guangzhou 510006, China.
⁴ Key Laboratory of Biomedical Engineering of Guangdong Province, and Innovation Center for Tissue, Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.
⁵ School of Materials Science and Engineering, Shandong University, Jinan 250061, China.

Abstract

An amorphous precursor of Cr₂O₃ pigment was prepared via solution combustion synthesis. After calcination at 1000 °C for 1.0 h, the precursor was converted into well-crystallized submicron Cr₂O₃ crystals with uniform particle distribution and low aggregation. Furthermore, Ti, Co, and Fe were doped into the lattice of Cr₂O₃, and the effects of these dopants on the reflectance spectroscopy modulation as well as chromatic properties were investigated in detail. As a result, a series of Cr₂O₃ pigment samples sharing similar spectra within the wavelength from 400 to 1600 nm with green plants could be successfully fabricated.

Keywords: chromic oxide green pigment; diffuse reflectance spectrum; green plants; solution combustion synthesis; submicron Cr2O3 crystal.

Abstract

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