Gao-Sheng Zhu, Yi Jia, Jia-Yao Ding, Hao Yin, Yan Chen, Baohui Yu, Yan-Ying Zheng, Francis Verpoort
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引用次数: 0
摘要
本文合成了一种荧光络合物[Zn(NTD)2(DTP)2(H2O)2]-(H2O)0.8(络合物 Zn)(H2NTD = 1,4-萘二甲酸,DTP = 3,5-二(1,2,4-三唑-1-基)吡啶)。荧光复合物通过单晶 X 射线衍射、粉末 X 射线衍射、热重、元素、红外光谱和荧光分析进行了表征。在荧光传感测试中,络合 Zn 在水介质中对 Fe3+、MnO4-、Cr2O72-、硝基呋喃妥因和吡虫啉表现出优异的荧光淬灭效率。机理研究表明,淬灭剂对传感器的荧光淬灭是由于荧光传感过程中的内滤光效应和荧光共振能量转移效应。
Design and Construction of a Mixed-Ligand Coordinated Fluorescent Complex and Its Application for Sensing Ions, Antibiotics, and Pesticides in Aqueous Solution
In this work, a fluorescent complex [Zn(NTD)2(DTP)2(H2O)2]·(H2O)0.8 (Complex Zn), (H2NTD = 1,4-naphthalenedicarboxylic acid and DTP = 3,5-di(1,2,4-triazol-1-yl)pyridine) was synthesized. The fluorescent complex was characterized by single-crystal X-ray diffraction, powder X-ray diffraction, and thermogravimetric, elemental, infrared spectroscopy, and fluorescence analyses. In the fluorescence sensing tests, Complex Zn exhibited excellent fluorescence quenching efficiency towards Fe3+, MnO4−, Cr2O72−, nitrofurantoin, and imidacloprid in aqueous media. A mechanism investigation suggested that the fluorescence quenching caused by the quenchers toward the sensor was due to the inner filter effect and the fluorescence resonance energy transfer effect in the fluorescent sensing process.