Abstract
Triphenylene derivative 4 bearing gallic acid groups at the periphery has been synthesized. Derivative 4 formed "not quenched" porous aggregates in mixed aqueous medium. These aggregates served as potent chemosensors for the selective detection of trinitrotoluene (TNT) in mixed aqueous media and the detection limit in the range of 228.6 × 10-12 g L-1 (228.6 parts per quadrillion) was observed. Interestingly, due to the porous morphology of these aggregates of derivative 4, they could detect TNT in the vapor phase also. In addition, the dip strips coated by the aggregates of derivative 4 could detect TNT in contact mode with detection limits of 22.7 attograms cm-2.
Original language | English |
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Pages (from-to) | 3187-3193 |
Number of pages | 7 |
Journal | New Journal of Chemistry |
Volume | 40 |
Issue number | 4 |
DOIs | |
State | Published - Apr 1 2016 |
Externally published | Yes |
Funding
V. B. is thankful to CSIR, New Delhi [ref. no. 02(0083)/12/EMR-II], for financial support. We are also thankful to UGC, New Delhi, for providing the infrastructural facilities under the UPE scheme and DRDO for TNT. HA and SP are thankful to CSIR and UGC for senior research fellowship (SRF) respectively.