华南理工大学学报(自然科学版) ›› 2019, Vol. 47 ›› Issue (12): 86-91.doi: 10.12141/j.issn.1000-565X.190123

• 材料科学与技术 • 上一篇    下一篇

Zn2+掺杂CaCuTi4O12的颜色及近红外反射性能

王达1,李娜2,钟明峰3,张志杰4   

  1. 1. 华南理工大学 物理与光电学院
    2. 华南理工大学 材料科学与工程学院
    3. 华南理工大学材料学院
    4. 华南理工大学材料科学与工程学院
  • 收稿日期:2019-03-26 修回日期:2019-06-30 出版日期:2019-12-25 发布日期:2019-11-02
  • 通信作者: 王达 E-mail:wangda@scut.edu.cn
  • 基金资助:
    广东省自然科学基金项目;华南理工大学中央高校基本科研业务费专项资金资助项目

Chromatic and near-infrared reflective properties of Zn2+ doped CaCuTi4O12

  • Received:2019-03-26 Revised:2019-06-30 Online:2019-12-25 Published:2019-11-02
  • Contact: Wang Da E-mail:wangda@scut.edu.cn

摘要: 采用固相法制备了一种具有较高近红外反射特性的新型无机颜料CaCu(3-x)ZnxTi4O12。用XRD、色差仪和紫外-可见光-近红外分光光度计等对产物的结构、颜色和反射特性进行研究。结果表明,随着取代程度的增加,晶体的结构由单相变为多项。随着Zn2+离子掺杂量增加(x=0.00~0.06),带隙宽度从2.16eV增加到2.26eV,黄色度从22.35增加到29.62,近红外反射比从52.3%增加到62.3%。CaCu3Ti4O12和CaCu2.4Zn0.6Ti4O12颜料涂层的近红外反射比分别为46.4%和55.2%。并且该颜料还具有良好的化学稳定性和热稳定性。这些事实表明CaCu(3-x)ZnxTi4O12颜料在冷涂层中有着很大的应用潜力。

Abstract: This paper adopted conventional solid state reaction route to prepare a new-type inorganic pigment CaCu(3-x)ZnxTi4O12 with high near-infrared reflective properties. The structure, colour and reflective properties were investigated by XRD, Color-Eye automatic differential colorimeter and UV-vis-NIR spectrophotometer. Result showed that crystal structure changed from single phase to multi-phase with the increase of substitution degree. With the increasing of doping amount of Zn2+ ions(x=0.00-0.06), the band gap increase from 2.16eV to 2.26eV, the yellow hue b* increases from 22.35 to 29.62, and the near infrared reflectance ratio increases from 52.3% to 62.3%. The near-infrared reflectance of CaCu3Ti4O12 and CaCu2.4Zn0.6Ti4O12 pigments coating are 46.4% and 55.2% respectively. The pigments also have chemical stability and thermal stability. Therefore, the prepared CaCu(3-x)ZnxTi4O12 pigments have great application potential in “cool colorant”.

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