New environment-friendly yellow pigments based on CeO2-ZrO2 solid solutions

被引：0
|
作者：
Furukawa, Shinya [1 ]
Masui, Toshiyuki [1 ]
Imanaka, Nobuhito [1 ]
机构：
[1] Department of Applied Chemistry, Faculty of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
来源：
Journal of Alloys and Compounds | 1600年 / 451卷 / 1-2期
关键词：
Ce1-xZrxBiyO2-y/2 solid solutions were synthesized as new inorganic yellow pigments and their color properties have been investigated as possible ecological materials. Although the optical absorption edge of the Ce1-xZrxBiyO2-y/2 pigments depends on their composition; all samples absorb the ultraviolet and the visible light under 500 nm efficiently. As a result; the pigments show a brilliant yellow color; and the most effective yellow hue was obtained at x = 0.37 and y = 0.20. The importance of the presence of Bi3+ in the CeO2-ZrO2 lattice has been elucidated by comparing the color of Ce0.43Zr0.37Bi0.20O1.9 with that of Ce0.43Zr0.37La0.20O1.9. Characterization of the Ce1-xZrxBiyO2-y/2 solid solutions suggests that they have a potential to be alternative yellow colorants for paints; inks; plastics; and ceramics. Since they are composed of non-toxic and safe elements; they would be inert and safe and exhibit no side effects in the human body. © 2007 Elsevier B.V. All rights reserved;
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页码：640 / 643
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