Design and Construction of a Mixed-Ligand Coordinated Fluorescent Complex and Its Application for Sensing Ions, Antibiotics, and Pesticides in Aqueous Solution
Gao-Sheng Zhu,
Yi Jia,
Jia-Yao Ding,
Hao Yin,
Yan Chen,
Bao-Yi Yu,
Yan-Ying Zheng,
Francis Verpoort
Affiliations
Gao-Sheng Zhu
Key Laboratory of Urban Agriculture in North China, Ministry of Agriculture P.R. China, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing 102206, China
Yi Jia
CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Jia-Yao Ding
Key Laboratory of Urban Agriculture in North China, Ministry of Agriculture P.R. China, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing 102206, China
Hao Yin
Key Laboratory of Urban Agriculture in North China, Ministry of Agriculture P.R. China, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing 102206, China
Yan Chen
Key Laboratory of Urban Agriculture in North China, Ministry of Agriculture P.R. China, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing 102206, China
Bao-Yi Yu
Key Laboratory of Urban Agriculture in North China, Ministry of Agriculture P.R. China, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing 102206, China
Yan-Ying Zheng
Key Laboratory of Urban Agriculture in North China, Ministry of Agriculture P.R. China, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing 102206, China
Francis Verpoort
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
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.
