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一种新型黄色荧光类水滑石材料的制备及表征

陈鸿,张丽,陈清松,凌启淡*   

  1. (福建师范大学材料科学与工程学院，福建省高分子材料重点实验室 福州 350007)
  • 收稿日期:2012-09-18 修回日期:2012-12-03 出版日期:2013-07-10 发布日期:2013-07-10
  • 通讯作者: 凌启淡，教授; Tel/Fax:0591-22868666; E-mail:lingqd@fjnu.edu.cn; 研究方向：信息功能材料与器件
  • 基金资助:
    国家自然科学基金（60976019）教育部高等学校博士学科点专项科研基金（20093223110002）及福建省高校科技创新团队支持计划（闽教科〔2012〕03号）资助项目

Preparation and Characterization of a Yellow-fluorescent Hydrotalcite-like Compound

CHEN Hong, ZHANG Li, CHEN Qingsong, LING Qidan*   

  1. (Fujian Key Laboratory of Polymer Materials,College of Materials Science and Engineering,Fujian Normal University,Fuzhou 350007,China)
  • Received:2012-09-18 Revised:2012-12-03 Published:2013-07-10 Online:2013-07-10
  • Contact: Qidan

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摘要： 用适量的Zn(Ⅱ)取代镁铝水滑石中的Mg(Ⅱ)，同时将一定量的2-对联苯基-8-羟基喹啉分散到类水滑石层间的亲油性阴离子中，使其与层板表面上的Zn(Ⅱ)配位，用一步法合成、组装得到一类新型黄色荧光类水滑石复合物（Zn(HQ-4-biPh)-HTlc）。 采用荧光光谱、红外光谱、X射线衍射、扫描电子显微镜和热分析等对其进行了表征。 研究结果表明，Zn(HQ-4-biPh)-HTlc在蓝光（481 nm）激发下可发出黄色荧光（554 nm），与其相应的含锌配合物（Zn[2-(p-biph)-8-Q-O]2）相比，不仅可节省配体用量，而且具有更高的发光强度和更好的热稳定性，有望在白光LED等光电领域得到应用。

关键词: 类水滑石, 黄光, 对联苯羟基喹啉, 插层, LED

Abstract: A yellow-fluorescent hydrotalcite-like(HTlc) composite, Zn-(HQ-4-biPh)-HTlc, was prepared by a one-pot synthesis. In this composite, the magnesium(Ⅱ) was partially replaced by zinc(Ⅱ) in the hydrotalcite-like layers and 2-biphenyl-4′-yl-8-quinolinolato was dispersed into the anions among the interlayer region to coordinate the zinc(Ⅱ) ion through its oxygen and nitrogen atoms. The structure, morphology, and optical properties of the composite were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM), FT-IR spectroscopy, thermogravimetry(TG) and photoluminescence(PL). Compared with Zn[2-(p-biph)-8-Q-O]2, the resultant composite Zn-(HQ-4-biPh)-HTlc exhibits much stronger fluorescence and higher thermal stability, although the contents of metals and ligands were decreased greatly. Thus, Zn-(HQ-4-biPh)-HTlc is a promising yellow-fluorescent material for applications in the photoelectronic area.

Key words: Mg-Al hydrotalcite-like compound (HTlc), yellow-light, biphenyl-yl-quinolinolato, modified, LED

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