Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 6, Issue 42, Pages 11287-11291Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8tc04250k
Keywords
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Funding
- NSFC [51473028]
- Key Scientific and Technological Project of Jilin Province [20150204011GX, 20160307016GX]
- Development and Reform Commission of Jilin Province [20160058]
- EPSRC [EP/K039423/1]
- EPSRC [EP/K039423/1] Funding Source: UKRI
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A series of luminescent non-conjugated polyurethane derivatives (PUs) has been obtained in a facile way in high yields. The polymers show highly selective and sensitive detection of 2,4,6-trinitrophenol (TNP) (picric acid). The selectivity for TNP is accomplished via combination of a strong inner filter effect (IFE), Forster resonance energy transfer (FRET) and photoinduced electron transfer (PET). A convenient indicator paper for the visual detection of TNP has been constructed by immobilization of the polymer PU1 on filter paper. The PU1-coated filter paper presents a rapid detection of TNP in water with a low concentration limit of 10(-10) M, approximate to 0.229 ag cm(-2). This is a simple, low-cost and highly efficient method for the detection of TNP.
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