Dual-emission MOF⊃dye sensor for ratiometric fluorescence recognition of RDX and detection of a broad class of nitro-compounds

Through an ion exchange method, the composite 1⊃HPTS was prepared via the introduction of HPTS (8-hydroxy-1,3,6-pyrenetrisulfonicacid trisodium salt) into the channels of the compound [Zn(TIPA)(NO 3 − ) 2 (H 2 O)]·5H 2 O ( 1 ). 1⊃HPTS exhibits durable dual-emission performance of both blue and yello...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2018, Vol.6 (19), p.9183-9191
Main Authors: Fu, Hong-Ru, Yan, Li-Bing, Wu, Nai-Teng, Ma, Lu-Fang, Zang, Shuang-Quan
Format: Article
Language:English
Subjects:
Aliphatic compounds
Antibiotics
Electron transfer
Emission
Energy transfer
Fluorescence
Fluorescence resonance energy transfer
RDX
Zinc
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Summary:Through an ion exchange method, the composite 1⊃HPTS was prepared via the introduction of HPTS (8-hydroxy-1,3,6-pyrenetrisulfonicacid trisodium salt) into the channels of the compound [Zn(TIPA)(NO 3 − ) 2 (H 2 O)]·5H 2 O ( 1 ). 1⊃HPTS exhibits durable dual-emission performance of both blue and yellow-green emission, and could act as a two-signal platform in aqueous solution. 1⊃HPTS exhibits ultrahigh sensitive response to a wide range of nitro-compounds, including nitroaromatics, aliphatic nitro-explosives and nitro-containing antibiotics. Particularly, 1⊃HPTS displays ratiometric fluorescence response against RDX. To the best of our knowledge, this is the first MOF-based probe with such an effect for the identification of RDX among luminescent materials. Moreover, the film based on the 1⊃HPTS sample shows high sensitivity towards 4-TNP vapor with good reusability. We also demonstrated that the detection of nitro-compounds using 1⊃HPTS predominantly involved photo-induced electron transfer and fluorescence resonance energy transfer.
ISSN:2050-7488
2050-7496
DOI:10.1039/C8TA02857E