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Fluorescent conjugated microporous polymer based on perylene tetraanhydride bisimide for sensing o-nitrophenol.
- Source :
-
Analytica Chimica Acta . Jun2018, Vol. 1011, p77-85. 9p. - Publication Year :
- 2018
-
Abstract
- A novel conjugated microporous polymer based on perylene tetraanhydride bisimide (DP 2 A 2 ) has been synthesized through Sonogashira–Hagihara cross-coupling polymerization of tetrabromo-substituted perylene tetraanhydride bisimide derivative (DPBr 2 ABr 2 ) with 1,4-diethynylbenzene, whose Brunauer–Emmett–Teller (BET) specific surface area is about 378 m 2 g −1 . The fluorescence quenching behaviors of the DP 2 A 2 were investigated. It is found that the DP 2 A 2 shows high sensitivity and selectivity to tracing o-nitrophenol (o-NP) in THF with Ks V constant of 2.00 × 10 4 L mol −1 . The detection limit (LOD) is 1.50 × 10 −9 mol L −1 . The possible sensing mechanism for the luminescent quenching of DP 2 A 2 towards o-NP exciting at 365 nm was considered the donor–acceptor electron transfer mechanism, which is a combined result from both dynamic (collisional) and static quenching. Moreover, the static quenching process is dominant for DP 2 A 2 . [ABSTRACT FROM AUTHOR]
- Subjects :
- *POLYMERS
*PERYLENE derivatives
*BISIMIDES
*NITROPHENOLS
*FLUORESCENCE quenching
Subjects
Details
- Language :
- English
- ISSN :
- 00032670
- Volume :
- 1011
- Database :
- Academic Search Index
- Journal :
- Analytica Chimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 128125991
- Full Text :
- https://doi.org/10.1016/j.aca.2018.01.002