Fast and Reversible “Turn on” Fluorescent Sensors Based on Bisphenol-a for Zn2+ in Aqueous Solution
Two novel bisphenol-A derivatives ( R1 and R2 ) linked pyrene and napthylthiazole moieties were synthesized via condensation reaction, and positively applied for the selective recognition of Zn 2+ ion in EtOH/H 2 O. Their optical properties were observed by using UV-vis and fluorescence measurements...
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Published in: | Journal of fluorescence 2019-09, Vol.29 (5), p.1079-1087 |
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Main Authors: | , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Two novel bisphenol-A derivatives (
R1
and
R2
) linked pyrene and napthylthiazole moieties were synthesized via condensation reaction, and positively applied for the selective recognition of Zn
2+
ion in EtOH/H
2
O. Their optical properties were observed by using UV-vis and fluorescence measurements.
R1
and
R2
exhibited high selectivity and sensitivity towards Zn
2+
over other metal ions. This fluorescence selectivity may be owing to inhibited excited-state intramolecular proton transfer (ESIPT) and photoinduced electron transfer (PET). The fluorescence titration analysis indicated detection limits of
R1
and
R2
for Zn
2+
at 17.5 nM and 0.94 μM, respectively. Moreover,
R1
and
R2
were successfully applied to the detection of Zn
2+
with different concentrations in water samples. |
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ISSN: | 1053-0509 1573-4994 |
DOI: | 10.1007/s10895-019-02419-8 |