Journal
APPLIED ORGANOMETALLIC CHEMISTRY
Volume 36, Issue 1, Pages -Publisher
WILEY
DOI: 10.1002/aoc.6456
Keywords
heavy metal ions; nitroaromatic compounds; sensing probe; zinc (II) metal-organic framework
Categories
Funding
- National Natural Science Foundation of China [21861005, 22075056]
- Guangxi Natural Science Foundation of China [2019GXNSFAA185025]
- Foundation of Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials [EMFM20161102]
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A new luminescent metal-organic framework (MOF) with excellent thermal and chemical stabilities has been reported, which can serve as a sensitive and recyclable luminescent probe for the detection of Ag+, Cr2O72-, and TNP with low detection limits.
It is important to develop sensors that can be easily fabricated for the detection of harmful industrial wastes and nitroaromatic explosives to reduce the risks to human health and protect the environment. We report a new luminescent metal-organic framework (MOF), [Zn-5(mu(3)-OH)(2)(TDA)(4)(4,4 '-bpt)(2)]n (1), (4,4 '-bpt = 1H-3,5-bis-(4-pyridyl)-1,2,4-triazole, H(2)TDA = thiophene-2,5-dicarboxylic acid), which was synthesized under solvothermal conditions and characterized using the PXRD, IR, TG, ICP-MS, mapping, and PL spectroscopic techniques. The {Zn-5} MOF of (1) with Zn-5 cluster as the node, and 4,4 '-bpt and TDA(2-) as linkers, exhibited excellent thermal and chemical stabilities. Furthermore, 1 can serve as a sensitive and recyclable luminescent probe for the detection of Ag+, Cr2O72-, and TNP with detection limits of 5.96, 4.34, and 1.59 mu M, respectively.
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