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Issue 18, 2018
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Fabrication of amine and imine-functionalized isoreticular pillared-layer metal–organic frameworks for the highly selective detection of nitro-aromatics

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Abstract

Chemical sensors for the rapid and selective detection of explosives such as 2,4,6-trinitrotoluene (TNT) are very important. In order to find efficient sensors with enhanced performance for nitro-aromatics, a series of IRMOFs with different pillaring ligands but the same network topology was examined. The fluorescence sensing ability of these compounds towards nitrobenzene (NB), 1,3-dinitrobenzene (1,3-DNB), 2,4-dinitrotoluene (2,4-DNT) and 2,4,6-trinitrotoluene (TNT) was investigated. These compounds have great potential for the detection of TNT. The limit of detection (LOD) for TNT is 112, 261, 833 and 1070 nM for TMU-6(L1), TMU-21(L2), TMU-6(RL1) and TMU-21(RL2), respectively. The LOD of TMU-21(RL2) is among the highest values reported in the literature for sensing TNT. The results highlight both the importance of functionality on the pillaring ligands as well as the hydrophilic/hydrophobic nature of the framework pores for the potential of MOFs for the detection of nitro-aromatics.

Graphical abstract: Fabrication of amine and imine-functionalized isoreticular pillared-layer metal–organic frameworks for the highly selective detection of nitro-aromatics

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Publication details

The article was received on 21 May 2018, accepted on 22 Jul 2018 and first published on 23 Jul 2018


Article type: Paper
DOI: 10.1039/C8NJ02407C
Citation: New J. Chem., 2018,42, 14772-14778
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    Fabrication of amine and imine-functionalized isoreticular pillared-layer metal–organic frameworks for the highly selective detection of nitro-aromatics

    S. Tarasi, A. Azhdari Tehrani, A. Morsali and P. Retailleau, New J. Chem., 2018, 42, 14772
    DOI: 10.1039/C8NJ02407C

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