高等学校化学学报 ›› 2022, Vol. 43 ›› Issue (6): 20220037.doi: 10.7503/cjcu20220037

• 研究论文: 无机化学 • 上一篇    下一篇

一种新的镧系金属有机骨架材料的合成、 结构及荧光检测性质

鲁聪, 李振华, 刘金露, 华佳, 李光华(), 施展, 冯守华   

  1. 吉林大学化学学院, 无机合成与制备化学国家重点实验室, 长春 130012
  • 收稿日期:2022-01-15 出版日期:2022-06-10 发布日期:2022-02-15
  • 通讯作者: 李光华 E-mail:leegh@jlu.edu.cn
  • 基金资助:
    国家自然科学基金(21571077);吉林省科技发展计划项目(20190303010SF)

Synthesis, Structure and Fluorescence Detection Properties of a New Lanthanide Metal-Organic Framework Material

LU Cong, LI Zhenhua, LIU Jinlu, HUA Jia, LI Guanghua(), SHI Zhan, FENG Shouhua   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,Changchun 130012,China
  • Received:2022-01-15 Online:2022-06-10 Published:2022-02-15
  • Contact: LI Guanghua E-mail:leegh@jlu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21571077);the Jilin Provincial Science and Technology Department Plan Project, China(20190303010SF)

摘要:

利用溶剂热方法合成了一种以Tb3+离子为中心的金属有机骨架材料[Tb2(bpt)2(H2O)2]·(DMA)4.5, 并通过单晶X射线衍射(SXRD)、 粉末X射线衍射(PXRD)、 元素分析(EA)、 热重分析(TGA)、 傅里叶变换红外光谱 (FTIR)以及荧光光谱技术(FS)表征了该材料的结构与基本物理化学性质. 单晶衍射分析结果显示该材料具有包含一维直孔道的三维结构, 结构中孔道窗口尺寸约为1.23 nm×1.10 nm. 荧光分析测试结果表明该材料对Cr3+离子有荧光响应, 离子检测限低至0.22 mg/L, 同时具有良好的选择性, 在Cr3+离子的荧光检测领域具有重要的应用潜力.

关键词: 溶剂热合成, 金属有机骨架材料, 稀土化合物, 荧光检测

Abstract:

A new lanthanide metal-organic framework material, [Tb2(bpt)2(H2O)2]·(DMA)4.5, with Tb3+ ion as the metal center was synthesized by solvothermal method. The material was further characterized by single crystal X-ray diffraction(SXRD), powder X-ray diffraction(PXRD), elemental analysis(EA), thermogravimetric analysis(TGA), Fourier transform infrared spectroscopy(FTIR) and fluorescence spectroscopy(FS). The results of single crystal diffraction analysis show that the compound has a three-dimensional structure containing a one-dimensional straight channel with a channel window of ca. 1.23 nm×1.10 nm. Fluorescence test results demonstrate that the detection limit for Cr3+ ions is as low as 0.22 mg/L, indicating that the compound has superior selectivity. It is expected to have potential application in the field of fluorescent detection of Cr3+ ions.

Key words: Solvothermal synthesis, Metal-organic framework material, Rare earth compound, Fluorescence sensing

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