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Synthesis and characterization of PrxZr1-xSiO4 (x = 0–0.08) yellow pigments via non-hydrolytic sol-gel method
Journal of the European Ceramic Society ( IF 5.7 ) Pub Date : 2018-05-19 , DOI: 10.1016/j.jeurceramsoc.2018.05.021
Ting Chen , Jianrui Zha , Xiaojun Zhang , Xiaobo Hu , Weihui Jiang , Zhixiang Xie , Wan Jiang

Yellow inorganic pigments PrxZr1-xSiO4 (x = 0–0.08) have been prepared by a novel non-hydrolytic sol-gel (NHSG) method at 750 °C for 2 h. Replacing Pr4+ for Zr4+ in ZrSiO4 increased the cell volume and changed the color from white to yellow gradually. The Si―O―Zr and Si―O―Pr bands were observed in the FT-IR spectra of xerogel, indicating it could reach homogeneous mixing at the atomic level. Therefore, it promoted the solid solution reaction between Pr and zircon at low temperature. The samples exhibit high doping limitation (x = 0.08) and brilliant yellow hue (b* = 69.48) in contrast with the previously reported praseodymium zircon yellow pigments. The intense of yellow hue was increased with increasing the Pr doping content due to the increase of Pr4+/Pr3+ species. After applying on bisque ceramic tiles, the pigment exhibited excellent coloration, high thermal stability and low solubility in molten glazes, indicating its potential application in ceramic decoration.



中文翻译:

非水解溶胶-凝胶法合成Pr x Zr 1-x SiO 4(x = 0–0.08)黄色颜料及其表征

黄色新型无机颜料Pr x Zr 1-x SiO 4(x = 0-0.08)通过新颖的非水解溶胶-凝胶(NHSG)方法在750°C下反应2小时制得。在ZrSiO 4中用Pr 4+代替Zr 4+可以增加晶胞体积,并使颜色逐渐从白色变为黄色。在干凝胶的FT-IR光谱中观察到Si-O-Zr和Si-O-Pr谱带,表明它可以在原子水平上达到均匀混合。因此,在低温下促进了Pr和锆石之间的固溶反应。样品显示出高的掺杂限度(x = 0.08)和亮黄色调(b * = 69.48)与以前报道的ase锆石黄色颜料形成对比。由于Pr 4+ / Pr 3+种类的增加,黄色色调的强度随着Pr掺杂含量的增加而增加。应用于bisque瓷砖上后,该颜料表现出优异的着色,高热稳定性和在熔融釉料中的低溶解度,表明其在陶瓷装饰中的潜在应用。

更新日期:2018-05-19
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