Journal
CRYSTAL GROWTH & DESIGN
Volume 19, Issue 10, Pages 5729-5736Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.9b00704
Keywords
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Funding
- Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering [2017-K09]
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A novel metal-organic framework {Zn-2(tpt)(2)(tad)(2)center dot H2O} (tpt = 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine, H(2)tda = 2,5-thiophene dicarboxylic acid) with a 3-fold interpenetrating 3D framework was successfully synthesized under hydrothermal conditions. As expected, 1 displays excellent luminescence and can stably exist in different pure organic solvents and acid-base solution. 1 can be considered as an ultrasensitive sensor for detection of Fe3+ ions and PA with high selectivity by fluorescence quenching behaviors. Meanwhile, the fluorescence test plates show the visible color change of Fe3+ ions which can be easily observed by the naked eye in the detection process, which makes Fe3+ ions more easily recognized than various metal ions. In addition, the mechanism of fluorescence quenching is also further discussed.
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