1. A Highly Efficient Fluorescent Sensor Based on AIEgen for Detection of Nitrophenolic Explosives.
- Author
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Li, Dongmi, Lv, Panpan, Han, Xiao-Wen, Jia, Zhilei, Zheng, Min, and Feng, Hai-Tao
- Subjects
EXPLOSIVES detection ,FLUORESCENCE quenching ,NITROAROMATIC compounds ,SOLID solutions ,EXPLOSIVES ,DETECTORS - Abstract
The detection of nitrophenolic explosives is important in counterterrorism and environmental protection, but it is still a challenge to identify the nitroaromatic compounds among those with a similar structure. Herein, a simple tetraphenylethene (TPE) derivative with aggregation-induced emission (AIE) characteristics was synthesized and used as a fluorescent sensor for the detection of nitrophenolic explosives (2, 4, 6-trinitrophenol, TNP and 2, 4-dinitrophenol, DNP) in water solution and in a solid state with a high selectivity. Meanwhile, it was found that only hydroxyl containing nitrophenolic explosives caused obvious fluorescence quenching. The sensing mechanism was investigated by using fluorescence titration and
1 H NMR spectra. This simple AIE-active probe can potentially be applied to the construction of portable detection devices for explosives. [ABSTRACT FROM AUTHOR]- Published
- 2023
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