A pillar-layered Cd(II) metal-organic framework for selective detection of organic explosives |
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| Authors: | Qi Yang Bin Wang Shu-Nan Sheng Hong-Shi Xian |
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| Institution: | 1. Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, PR China;2. Shanghai Institute of Space Power-Sources, Shanghai, PR China |
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| Abstract: | The detection of explosives is crucial for homeland security, environmental cleaning, and military issues. As a new class of porous materials, metal-organic frameworks (MOFs) are promising platforms for the detection of organic explosives. In this work, a new pillar-layered Cd(II) MOF, CdL0.5dpe0.5]·2H2O (BUT-202, H4L = 4,8-disulfonaphthalene-2,6-dicarboxylic acid, dpe = 1,2-bis(4-pyridyl)ethylene), was synthesized and characterized by single-crystal X-ray diffraction, powder X-ray diffraction, thermogravimetric analysis, infrared spectroscopy, and elemental analysis. BUT-202 has good fluorescent properties, which can be selectively quenched by trace amounts of 2,4,6-trinitrophenol (TNP) in DMF with low detection limit of 0.2 μM. |
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| Keywords: | Metal-organic framework selective detection organic explosive fluorescent quenching |
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