无机材料学报 ›› 2019, Vol. 34 ›› Issue (6): 599-604.DOI: 10.15541/jim20180387

• 研究论文 • 上一篇    下一篇

Cu 2+、Tb 3+共掺杂BaZrO3高近红外反射颜料的制备及其性能研究

张少丹1,包维维1(),马海萍2   

  1. 1. 陕西理工大学 材料科学与工程学院, 汉中 723000
    2. 安徽省地质实验研究所, 合肥 230001
  • 收稿日期:2018-09-03 修回日期:2018-12-18 出版日期:2019-06-20 网络出版日期:2019-05-23
  • 作者简介:张少丹(1994-), 女, 硕士研究生. E-mail:18091609476@163.com
  • 基金资助:
    陕西省教育厅专项科研计划项目(17JK0161);陕西理工大学博士启动经费(1SLGQD 13(2)-15)

Near-infrared Reflective Pigments Based on Cu 2+ and Tb 3+ Codoped BaZrO3: Preparation and Performance

Shao-Dan ZHANG1,Wei-Wei BAO1(),Hai-Ping MA2   

  1. 1. School of Materials Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, China
    2. Research Institute of Geological Experiment, Hefei 230001, China
  • Received:2018-09-03 Revised:2018-12-18 Published:2019-06-20 Online:2019-05-23
  • Supported by:
    SLGQD132-15 Special Scientific Research Planned Projects of Education Department of Shaanxi Province(17JK0161);Doctoral Scientific Research Foundation of Shaanxi University of Technology(1SLGQD 13(2)-15)

摘要:

环保型高近红外反射颜料可以有效缓解城市“热岛效应”和能源危机, 对推动绿色建筑节能产业发展具有重要的意义。离子掺杂是实现高近红外反射颜料呈色多样性的有效手段, 本研究采用溶胶-凝胶法制备了一系列铜离子和稀土铽离子共掺杂的高近红外反射Ba1-xCuxZr1-yTbyO3(x=0.15, 0.25, 0.35; y=0, 0.15)无机颜料。利用X射线衍射仪(XRD)、紫外/可见/近红外分光光度计、CIE 1976 L *a *b *色度坐标等对所合成的颜料粉体的晶体结构、反射性能、颜色性能等进行表征。结果表明, 在煅烧温度为1100 ℃时, 所合成的样品均为立方钙钛矿结构; Cu 2+、Tb 3+共掺杂进入BaZrO3晶格中, 随着掺杂量的增加, 颜料样品颜色由白色逐渐变为灰色再变为黄色。而且所得颜料在780~2500 nm波长范围内具有较高的近红外太阳光反射率, 其平均反射率(R *)可达到 80%左右。因此, 这种Ba1-xCuxZr1-yTbyO3“冷”颜料粉体在建筑涂料等方面具有广阔的应用前景。

关键词: 溶胶-凝胶法, 共掺杂, 近红外反射, “冷”颜料;

Abstract:

The urban island effect and energy crisis can be relieved usefully by environmentally benign and high near-infrared reflective pigments, which is of great significance to develop of green energy-saving industry. Ions doping is an effective way to achieve the color diversity of high near infrared reflective pigments. In this work, a series of high near-infrared reflection Ba1-xCuxZr1-yTbyO3 (x=0.15, 0.25, 0.35; y=0, 0.15) inorganic pigment co-doped with Cu 2+and rare earth Tb 3+was prepared by a Sol-Gel process. Its phase structure, ultraviolet/visible/near-infrared reflectance, and color parameters of the synthesized pigment samples were investigated and characterized by X-ray diffraction (XRD), UV/Vis/NIR spectroscopy, and color CIE-L *a *b * 1976 color scales. The results demonstrate that all synthesized pigments have cubic perovskite structure after calcined at 1100 ℃. The co-doping of Cu 2+ and Tb 3+ is successfully introduced into the BaZrO3 lattice, and the color increasingly changes from white to gray, and to yellow with the increase of Cu 2+and Tb 3+concentration. Meanwhile, the obtained pigments possess high near-infrared solar reflectance in the range of 780-2500 nm, the average reflectance is up to 80%. Therefore, these Ba1-xCuxZr1-yTbyO3 cool powdered pigment have great application prospect in the building coatings.

Key words: Sol-Gel, co-doping, near-infrared reflectance, cool pigment

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