4.6 Article

A 3D pillared-layer metal-organic framework with fluorescence property for detection of nitroaromatic explosives

期刊

NEW JOURNAL OF CHEMISTRY
卷 43, 期 2, 页码 963-969

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nj05276j

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资金

  1. National Natural Science Foundation of China [21801021, 21603017]
  2. Science and Technology Development Plan of Jilin Province [20180520150JH]
  3. Thirteenth Five-Year Program for Science and Technology of Education Department of Jilin Province [JJKH20181092KJ]
  4. Natural Science Foundation of Jilin Province [20160101298JC]
  5. innovative Foundation of Changchun University of Science and Technology [XJJLG-2017-02]

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A metal-organic framework (MOF) {[(CH3)(2)NH2](2)[Cd-3(NTB)(2)(BDC)]}4DMF (NTB = 4,4,4-nitrilotrisbenzoic acid; BDC = benzenedicarboxylic acid; DMF = N,N-dimethylformamide) (1) was synthesized via the solvothermal method. In 1, [Cd-3(CO2)(6)] SBUs are linked by NTB3- to form a perfectly 2D planar Cd(NTB) sheet, which is further pillared by BDC, resulting in a 3D pillared layer network. It displays highly selective and recyclable properties in the detection of nitroaromatic explosives such as nitrobenzene (NB), 1,2-dinitrobenzene (1,2-DNB), 1,3-dinitrobenzene (1,3-DNB), 1,4-dinitrobenzene (1,4-DNB) and picric acid (PA, also called 2,4,6-trinitrophenol). Additionally, through the comparison of quenching efficiencies, we can differentiate nitroaromatic explosives with different numbers and locations of -NO2 groups. According to the experimental results, 1 has great potential to be a favorable sensor for selective detection of nitroaromatic explosives, especially PA.

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