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Fluorescent Zinc(II)-Based Metal−Organic Frameworks for Nitroaromatics Sensing

Abstract

A new structural metal−organic framework with fluorescent property, namely Zn4(BTC)2(OH)2(CH3OH)6 (NJMU-001), was synthesized by using 1,3,5-benzenetricarboxylic acid (H3BTC) and zinc nitrate through solvothermal reaction. In order to obtain the good single crystals of NJMU-001, the factors affecting the reaction such as reaction temperature, reaction time, solvent and metal salt/ligand molar ratios, were studied. The phase purity of the NJMU-001 was investigated by powder X-ray diffraction analysis, elemental analysis and FT-IR spectroscopy. Gas sorption measurements revealed that NJMU-001 was microporous and thermogravimetric analysis indicated that it was thermally stable under 200 °C. Fluorescence study of NJMU-001 in N, N-dimethylformamide medium showed blue emission at 435 nm upon excitation at 370 nm. This emissive property was used for sensitive sensing of toxic and explosive nitroaromatics by showing fluorescence quenching.

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Publication details

The article was received on 14 Dec 2017, accepted on 14 Feb 2018 and first published on 15 Feb 2018


Article type: Paper
DOI: 10.1039/C7NJ04966H
Citation: New J. Chem., 2018, Accepted Manuscript
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    Fluorescent Zinc(II)-Based Metal−Organic Frameworks for Nitroaromatics Sensing

    Y. J. Ma, G. Xu, F. Wei, Y. Cen, Y. Y. Song, M. Shi, X. Xu, M. Sohail and Q. Hu, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ04966H

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