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Title: A simple and fluorescence turn-on recognition of Pb2+ ions involving pyrene-thiadiazole chemosensor probe
Authors: Durai, Willsingh Anbu
Ramu, Andy
Keywords: Environmental water samples;fluorescence turn-on;Naked-eye;Selective;Sensitive
Issue Date: Sep-2021
Publisher: NIScPR-CSIR, India
Abstract: In this present work, an exceptionally specific and selective chemosensor (Z)-5-((pyren-1-ylmethylene)amino)-1,3,4thiadiazole-2-thiol (PCAT), has been designed and synthesized via simplest synthetic route. The synthesized probe is successfully portrayed by utilizing 1H, 13C NMR, ESI-MS techniques. The PCAT probe indicates colour changes which can be seen through naked-eye from colourless to pink and fluorescence turn-on response specifically towards Pb2+ ions with the possible contending metal ions. The binding stoichiometric proportion has been found as 1:1 from the Job’s plot investigation. The detection limit for PCAT-Pb2+ ions is found to be 7.15×10-8 M. Besides, the real sample analysis is also done with the collected ecological water samples and has resulted in an excellent recovery percentage.
Page(s): 564-571
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.28(5) [September 2021]

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