The Color Sift of Cerium Molybdenum Sheelite by Substituting Bi3 + or W6 + Ion

T. Odaki, K. Hashimoto, Y. Toda
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引用次数: 3

Abstract

We prepared chemical compounds whose Ce 3+ ions are replaced with Bi 3 + ions at a certain rate in LiCeMo 2 O 8 , NaCeMo 2 O 8 , Ca 0.5 CeMo 2 O 8 , and Sr 0.5 CeMo 2 O 8 that have the sheelite crystal structure, and the change of the hue of these materials was investigated. In addition, the cause of Ce 3+ ion color development in the sheelite structure was studied based on the result of substituting Bi 3+ ions for Ce 3+ ions and change of the hue of the compounds whose Mo 6+ ions are replaced with W 6+ ions. The result revealed that the absorption edge shifted to the longer wavelength side as the amount of the replaced Bi 3 + ions increased, and the hue of the product changed from yellow to reddish yellow. The changes in the chemical bonding nature of the crystal were found to give a great impact on the color development of the Ce 3+ ion. Although the Ce 3+ ion takes on the yellow hue in the sheelite crystal structure, its absorption edge can be shifted freely by generating the substitutional solid solution of metal ions with different electronegativity.
用Bi3 +或W6 +离子取代铈钼板的颜色筛选
我们在licemo2o8、nacemo2o8、ca0.5 cemo2o8和sr0.5 cemo2o8中制备了具有层状晶体结构的ce3 +离子以一定速率被bi3 +离子取代的化合物,并研究了这些材料的色相变化。此外,通过用bi3 +离子取代ce3 +离子的结果,以及用w6 +离子取代mo6 +离子后化合物的色相变化,研究了ce3 +离子在板层结构中显色的原因。结果表明,随着bi3 +取代量的增加,吸收边向较长波边偏移,产物的颜色由黄色变为红黄色。发现晶体化学键性质的变化对ce3 +离子的显色有很大的影响。虽然ce3 +离子在膜层晶体结构中呈现黄色色调,但通过产生不同电负性金属离子的取代固溶体,其吸收边可以自由移动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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