Selective fluorescence sensors for detection of nitroaniline and metal Ions based on ligand-based luminescent metal-organic frameworks

Selective fluorescence sensors for detection of nitroaniline and metal Ions based on ligand-based luminescent metal-organic frameworks
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基于配体发光金属有机框架的选择性荧光传感器,用于检测硝基苯胺和金属离子

DOI:
10.1016/j.jssc.2015.09.010
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发表时间:
2015-12
影响因子:
3.3
通讯作者:
Guodong Li
Guodong Li
中科院分区:
化学3区
文献类型:
--
作者:
Yiyuan Fu;Xiaojun Wang;Yongnan Zhao;Guodong Li

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金属有机骨架(MOFs)是一种多孔晶体材料,在荧光传感器中具有很高的应用潜力。本工作研究了两种溶剂诱导的Zn(II)基金属有机骨架化合物Zn 3L 3(DMF)2(1)和Zn 3L 3(DMA)2(H2O)3(2)(L= 4,4 ′-二苯乙烯二甲酸)作为选择性传感材料对硝基芳香族化合物和金属离子的检测。传感实验表明,1和2对硝基苯胺都表现出选择性荧光猝灭,且检测限较低。此外,该配合物对Fe ~(3+)和Al ~(3+)具有很强的荧光猝灭或增强作用,对Fe ~(3+)和Al ~(3+)具有很高的选择性。而对于2,它只对Fe ~(3+)有明显的荧光猝灭作用。结果表明,1和2均具有较高的灵敏度和选择性,是检测和识别硝基苯胺和金属离子的理想荧光传感器。
Metal-organic frameworks (MOFs) are porous crystalline materials with high potential for applications in fluorescence sensors. In this work, two solvent-induced Zn(II)–based metal-organic frameworks, Zn3L3(DMF)2(1) and Zn3L3(DMA)2(H2O)3(2) (L=4,4′-stilbenedicarboxylic acid), were investigated as selective sensing materials for detection of nitroaromatic compounds and metal ions. The sensing experiments show that1and2both exhibit selective fluorescence quenching toward nitroaniline with a low detection limit. In addition,1exhibits high selectivity for detection of Fe3+and Al3+by significant fluorescence quenching or enhancement effect. While for2, it only exhibits significant fluorescence quenching effect for Fe3+. The results indicate that1and2are both promising fluorescence sensors for detecting and recognizing nitroaniline and metal ions with high sensitivity and selectivity.
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