Fabrication of amine and imine-functionalized isoreticular pillared-layer metal–organic frameworks for the highly selective detection of nitro-aromatics. (13th August 2018)

• Record Type: Journal Article
• Authors: Tarasi, Somayeh; Azhdari Tehrani, Alireza; Morsali, Ali; Retailleau, Pascal
• Is Part Of: New journal of chemistry. Volume 42:Number 18(2018)
• Page Start: 14772
• Page End: 14778
• Publication Date: 2018-08-13
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c8nj02407c
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Chemical sensors for the rapid and selective detection of explosives such as 2, 4, 6-trinitrotoluene (TNT) are very important. 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.