化工进展 ›› 2016, Vol. 35 ›› Issue (07): 2130-2134.DOI: 10.16085/j.issn.1000-6613.2016.07.027

• 材料科学与技术 • 上一篇    下一篇

氨基化二氧化硅荧光微球的制备及其表征

刘清浩1, 郭金春1, 蔡宇廷1, 冷嘉鹏1, 刘红彦2, 陈立功3   

  1. 1. 中北大学化工与环境学院, 山西 太原 030051;
    2. 河南省农业科学院植物保护研究所, 河南 郑州 450002;
    3. 天津大学化工学院, 天津 300072
  • 收稿日期:2015-08-12 修回日期:2016-04-03 出版日期:2016-07-05 发布日期:2016-07-05
  • 通讯作者: 刘清浩(1979-),女,博士,讲师,主要从事新型荧光功能材料合成、性能和生物应用的研究。E-mail:liuqinghao0205@126.com。
  • 作者简介:刘清浩(1979-),女,博士,讲师,主要从事新型荧光功能材料合成、性能和生物应用的研究。E-mail:liuqinghao0205@126.com。
  • 基金资助:
    省级大学生创新创业训练项目(1504211303)和2015校学科研究基金项目(110246)。

Preparation and characterization of silica fluoresent microspheres with amino groups

LIU Qinghao1, GUO Jinchun1, CAI Yuting1, LENG Jiapeng1, LIU Hongyan2, CHEN Ligong3   

  1. 1. School of Chemical Engineering and Environment, North University of China, Taiyuan 030051, Shanxi, China;
    2. Institute of Plant Protection, Henan Academy of Agriculture Sciences, Zhengzhou 450002, Henan, China;
    3. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
  • Received:2015-08-12 Revised:2016-04-03 Online:2016-07-05 Published:2016-07-05

摘要: 首先合成了荧光量子产率高的不对称罗丹明衍生物,以其为荧光染料,正硅酸乙酯为硅源,在酸性条件下,运用包埋法制备了二氧化硅荧光微球。然后采用硅烷偶联剂氨丙基三乙氧基硅烷,在二氧化硅荧光微球表面引入氨基功能基团。通过扫描电镜、荧光显微镜、红外光谱仪、荧光分光光度计对氨基化二氧化硅荧光微球的形貌、结构和荧光性能进行了表征。结果表明,氨基化二氧化硅荧光微球具有良好的单分散性,粒径分布窄,荧光性能好且稳定,并成功的引入氨基基团。

关键词: 二氧化硅, 制备, 有机化合物, 氨基化荧光微球, 不对称罗丹明衍生物

Abstract: Asymmetrical rhodamine derivative was firstly synthesized with a yield of high fluorescence quantum. Using asymmetrical rhodamine derivative as fluoresent dye, tetraethyl orthosilicate as the raw material, we prepared silica fluoresent microspheres by embedding method under acidic solutions. Then surface modification on the silica fluoresent microspheres by aminopropyl triethoxysilane was carried out. Finally, silica fluorescent microspheres with amino groups were characterized by scanning electron microscopy, fluorescence microscopy, fourier transform-infrared spectroscopy and fluorescence spectrophotometry. The results indicated that the obtained silica fluorescent microspheres were of good dispersion, narrow particle size, stable and high fluorescence intensity. And amino groups were successfully introduced on the surface.

Key words: silica, preparation, organic compounds, fluoresent microspheres with amino groups, asymmetrical rhodamine derivative

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