A novel pyrene‐based “off–on” fluorescent probe with high selectivity and sensitivity for Hg 2

In this article, a novel “off–on” fluorescent probe 2‐(pyren‐1‐ylmethylene)‐1 H ‐indene‐1,3(2 H )‐dione ( PID ) for Hg 2+ was designed and synthesized. The selectivity, concentration titration, pH titration, time dependence, limit of detection, and recognition mechanism of PID for Hg 2+ in CH 3 CH 2...

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Bibliographic Details
Published in:Journal of the Chinese Chemical Society (Taipei) 2023-10, Vol.70 (10), p.1937-1943
Main Authors: Liang, Qingxiang, Zhou, Wu, Wu, Aibin, Shu, Wenming, Yu, Weichu
Format: Article
Language:English
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Summary:In this article, a novel “off–on” fluorescent probe 2‐(pyren‐1‐ylmethylene)‐1 H ‐indene‐1,3(2 H )‐dione ( PID ) for Hg 2+ was designed and synthesized. The selectivity, concentration titration, pH titration, time dependence, limit of detection, and recognition mechanism of PID for Hg 2+ in CH 3 CH 2 OH/H 2 O solution were also investigated. The results indicated that PID exhibited high selectivity, sensitivity, and fast response to Hg 2+ , and the limit of detection was as low as 20.7 nmol/L. In addition, PID could work in a wide pH range, and the determination of Hg 2+ in water samples showed that it could be used as a potential detection tool in practical application.
ISSN:0009-4536
2192-6549
DOI:10.1002/jccs.202300231