3A novel carbazole-based AIE-active fluorescent sensor for fast and ultrasensitive detection of Cu2+ and Co2+ in normal saline system
A novel phenyl-carbazole-based fluorescent sensor (PCBP) has been synthesized and investigated to selectively detect Cu 2+ or Co 2+ . The PCBP molecule exhibits the excellent fluorescent property with the aggregation-induced emission (AIE) effect. In given THF/normal saline ( f w = 95%) system, the...
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Published in | Photochemical & photobiological sciences Vol. 22; no. 8; pp. 1961 - 1975 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Cham
Springer International Publishing
01.08.2023
|
Subjects | |
Online Access | Get full text |
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Summary: | A novel phenyl-carbazole-based fluorescent sensor (PCBP) has been synthesized and investigated to selectively detect Cu
2+
or Co
2+
. The PCBP molecule exhibits the excellent fluorescent property with the aggregation-induced emission (AIE) effect. In given THF/normal saline (
f
w
= 95%) system, the PCBP sensor shows turn-off fluorescence performance at 462 nm with Cu
2+
or Co
2+
. It reveals excellent characteristics of good selectivity, and ultra-high sensitivity, strong anti-interference ability, wide pH applicable range, as well as ultra-fast detection response. The limit of detection (LOD) of the sensor reaches 1.1 × 10
−9
mol·L
−1
and 1.1 × 10
−8
mol·L
−1
for Cu
2+
and Co
2+
in turn. The formation mechanism of AIE fluorescence of PCBP molecules is attributed to the synergistic effect of intramolecular & intermolecular charge transfer (I&ICT). Meanwhile, the PCBP sensor has good repeatability for the detection of Cu
2+
, and performs excellent stability and sensitivity for the detection of Cu
2+
in real water sample. The PCBP-based fluorescent test strips present reliable capacity for the detection of Cu
2+
and Co
2++
in aqueous solution.
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1474-905X 1474-9092 |
DOI: | 10.1007/s43630-023-00424-2 |