• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Synthesis and characterisation of SrY2-xCexO4 as environmentally friendly reddish-brown pigments
【24h】

Synthesis and characterisation of SrY2-xCexO4 as environmentally friendly reddish-brown pigments

机译：Sry2-XCEXO4的合成与表征为环保红褐色颜料

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Reddish-brown SrY2-xCexO4 (0 = x = 1.2) solid solutions were synthesized by a citrate sol-gel method as novel environmentally friendly inorganic pigments. The powders obtained were characterized by X-ray powder diffraction (XRD), UV-vis diffuse reflectance spectra and CIE L*a*b*Ch degrees chromatic coordinate measurements. All SrY2-xCexO4 (0 = x = 1.2) samples were obtained in a single-phase form and the lattice volume increased on increasing the Ce3+ concentration. The reddish-brown pigments exhibited optical absorption due to the 4f-5d allowed transition of Ce3+. The absorption bands observed in the wavelength region of 400 and 550 nm were due to the Ce3+ ions in the ideal octahedral Y3+ site and those in the longer wavelength region above 600 nm were attributed to the transition of Ce3+ in the distorted octahedral Y3+ site. The samples gradually became reddish on increasing the Ce3+ content. The most reddish colour was obtained in SrYCeO4 (a* = +21.8).
机译：通过柠檬酸溶胶 - 凝胶法作为新型环保无机颜料合成红棕色Sry2-XcexO4（0＆ = 1.2）固溶体。 通过X射线粉末衍射（XRD），UV-Vis漫反射谱和CIE L * A * B * CH度色度坐标测量来表征获得的粉末。 所有Sry2-XcexO4（0＆ = x＆ = 1.2）以单相形式获得样品，并且晶格体积增加Ce3 +浓度增加。 由于CE3 +的4F-5D允许的转变，红棕色颜料表现出光学吸收。 在400和550nm的波长区域中观察到的吸收带是由于理想的八面体Y3 +位点中的CE3 +离子，600nm以上的波长区域中的那些归因于CE3 +在扭曲的八面体Y3 +位点的转变。 样品在增加CE3 +含量时逐渐变为红色。 在Sryceo4（A * = +21.8）中获得了最红的颜色。

著录项

  • 来源
    《RSC Advances》 |2017年第87期|共7页
  • 作者

    Oka Ryohei; Shobu Yusuke; Aoyama Fumiya; Tsukimori Takashi; Masui Toshiyuki;

  • 作者单位

    Tottori Univ Grad Sch Engn Dept Chem &

    Biotechnol 4-101 Koyama Cho Minami Tottori 6808552 Japan;

    Tottori Univ Grad Sch Engn Dept Chem &

    Biotechnol 4-101 Koyama Cho Minami Tottori 6808552 Japan;

    Tottori Univ Grad Sch Engn Dept Chem &

    Biotechnol 4-101 Koyama Cho Minami Tottori 6808552 Japan;

    Tottori Univ Grad Sch Engn Dept Chem &

    Biotechnol 4-101 Koyama Cho Minami Tottori 6808552 Japan;

    Tottori Univ Grad Sch Engn Dept Chem &

    Biotechnol 4-101 Koyama Cho Minami Tottori 6808552 Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号