期刊
INORGANIC CHEMISTRY
卷 57, 期 17, 页码 10525-10532出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.8b00313
关键词
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资金
- National Science Foundation of China [21361016, 21761023]
- Inner Mongolia Autonomous Region Fund for Natural Science [2017ZD01]
The self-assembly of a zinc salt with the novel ligand 4,4',4 ''-[(1,3,5-triazine-2,4,6-triyl)tris(sulfanediyl)]tribenzoic acid generated 3D microporous metal- organic frameworks (MOFs), namely, {[Zn-4(L3-)(2)(O2)(H2O)(2)]center dot 4EtOH}(n). The frameworks with multiple Lewis basic sites exhibit easily sensitized properties. After encapsulation of the Tb3+ cation in this Zn-MOF, the as-obtained fluorescent-functionalized Tb@Zn-MOFs not only maintain distinguished chemical stabilities but also exhibit strong characteristic emissions of trivalent terbium ions. Interestingly, Tb@Zn-MOF has been chosen to be a potential highly selective and sensitive luminescent platform for the reversible detection of PO43- ions in aqueous and living cell buffer solutions with a fast response time of 10 s and a low detection limit (0.1 ppm). Strikingly, this work presents the first example of a fluorescent sensor that can quantitate PO43- in simulated biological fluids and monitor these ions in the water system in a wide range of concentrations from 10(-6) to 10(-3) M.
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