Synthesis of Ceramic Pigments with Chromium Content
from Leather Waste |
Bo He,1 Yi Du,1,* Huixiang Xu,1 Jingchen Ma,1 Chuanbing Cheng1 and Minxing Du2
Pages : 103-109
DOI : 10.1080/0371750X.2021.1887766 |
Abstract |
Two different coloured ceramic pigments, blue-green and black, were prepared by
using solid phase reaction method from calcined leather waste and industrial grade
metal oxides. Chemical compositions of leather waste were characterized by X-ray
fluorescence (XRF) in order to determine their chemical compositions, which indicated
that the calcined leather waste could be used as a chromium precursor system to
prepare ceramic pigments. Crystal structure, microstructure, absorption spectra and
colorimetric coordinates of ceramic pigments were characterized by XRD, SEM, UVvis
spectrophotometer and fully automatic colorimeter, respectively. Glaze experiments
proved that the as-prepared pigments had good stability and excellent colour
development performance. In addition, it was found that the best black colour
rendering effect (L*=9.95) occured when the content of calcined leather was 45 wt%,
however, the colour rendering performance of blue-green pigments was related to the
amount of Al2O3 added. The process scheme is green and environmentally friendly,
which is of great significance to resource recycling, sustainable economy and social
development.
[Keywords: Leather waste, Ceramic pigments, Resource recycling, Glaze experiments] |
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