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Synthesis and Characterization of Ca1–xEuxZrO3 as Environmentally Friendly Inorganic Yellow Pigments
ACS Omega ( IF 3.7 ) Pub Date : 2021-01-22 , DOI: 10.1021/acsomega.0c05959 Kohei Minagawa 1 , Yuichi Nishiguchi 1 , Ryohei Oka 2 , Toshiyuki Masui 3, 4
ACS Omega ( IF 3.7 ) Pub Date : 2021-01-22 , DOI: 10.1021/acsomega.0c05959 Kohei Minagawa 1 , Yuichi Nishiguchi 1 , Ryohei Oka 2 , Toshiyuki Masui 3, 4
Affiliation
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Eu2+-doped calcium zirconates, Ca1–xEuxZrO3 (0 ≤ x ≤ 1), were synthesized as novel environmentally friendly inorganic yellow pigments by the conventional solid-state reaction method. The crystal structure, morphology, optical properties, and color were characterized. The Eu2+-doped samples strongly absorbed blue light in the wavelength range of 435–480 nm, which was caused by the 4f–5d allowed transition of Eu2+. The color of the sample gradually became brilliant yellow with increasing the Eu2+ content. Among the samples synthesized in this study, the brightest yellow color was obtained with the Ca0.7Eu0.3ZrO3 (a* = +11.5 and b* = +70.7) sample. Compared with the commercially available praseodymium yellow pigment (a* = −3.28, b* = +70.3), the yellowness value (b*) of Ca0.7Eu0.3ZrO3 was comparable and the redness value (a*) was higher. As a result, this pigment exhibited a reddish yellow color as compared with praseodymium yellow. In addition, this pigment was chemically stable. Therefore, the Ca0.7Eu0.3ZrO3 pigment has the potential to become a novel environmentally friendly inorganic yellow pigment.
中文翻译：
环保型无机黄色颜料Ca 1– x Eu x ZrO 3的合成与表征
的Eu 2+掺杂钙锆，钙1- X铕X的ZrO 3（0≤ X ≤1），合成作为新的环保型无机黄色颜料通过常规固相反应法。表征了晶体结构，形态，光学性质和颜色。掺杂Eu 2+的样品强烈吸收了435-480 nm波长范围内的蓝光，这是由Eu 2+的4f-5d跃迁引起的。随着Eu 2+含量的增加，样品的颜色逐渐变成亮黄色。在这项研究中合成的样品中，Ca 0.7可获得最亮的黄色Eu 0.3 ZrO 3（a * = +11.5和b * = +70.7）样品。与可商购的镨黄颜料（比一* = -3.28，b * = 70.3），黄值（b *）的Ca 0.7 Eu的0.3的ZrO 3是可比较的和红色值（一个*）较高。结果，与黄色相比，该颜料显示出红黄色。另外，该颜料是化学稳定的。因此，Ca 0.7 Eu 0.3 ZrO 3 颜料有可能成为新型的环保型无机黄色颜料。
更新日期：2021-02-02
中文翻译：
环保型无机黄色颜料Ca 1– x Eu x ZrO 3的合成与表征
的Eu 2+掺杂钙锆，钙1- X铕X的ZrO 3（0≤ X ≤1），合成作为新的环保型无机黄色颜料通过常规固相反应法。表征了晶体结构，形态，光学性质和颜色。掺杂Eu 2+的样品强烈吸收了435-480 nm波长范围内的蓝光，这是由Eu 2+的4f-5d跃迁引起的。随着Eu 2+含量的增加，样品的颜色逐渐变成亮黄色。在这项研究中合成的样品中，Ca 0.7可获得最亮的黄色Eu 0.3 ZrO 3（a * = +11.5和b * = +70.7）样品。与可商购的镨黄颜料（比一* = -3.28，b * = 70.3），黄值（b *）的Ca 0.7 Eu的0.3的ZrO 3是可比较的和红色值（一个*）较高。结果，与黄色相比，该颜料显示出红黄色。另外，该颜料是化学稳定的。因此，Ca 0.7 Eu 0.3 ZrO 3 颜料有可能成为新型的环保型无机黄色颜料。
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