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https://hdl.handle.net/20.500.13091/4340
Title: | A highly sensitive colorimetric and fluorogenic detection of copper(II) ion based on new picolylamine-armed calix[4]arene | Authors: | Tabakcı, Begüm Özçelik, Egemen Erdemir, Serkan Tabakcı, Mustafa |
Keywords: | Calixarene Heavy metal Copper Chemical sensor Colorimetric sensor Water pollution Electrochemical Sensor Selective Recognition Fluorescent Detection Molecular Receptor Qcm Sensors Cu2+ Extraction Chemosensor Complexes Sorption |
Publisher: | Elsevier Sci Ltd | Abstract: | In this study, two-and tetra-functionalized with bis(2-picolyl)amine calix[4]arene derivatives (2-PACX and 4-PACX) were synthesized, and their structures were confirmed by 1H NMR, 13C NMR, FT-IR and TOF-MS spec-troscopies. Cation sensing behaviors of them were investigated towards several cations such as Fe2+, Al3+, Cr3+, Hg2+, Mn2+, Cu2+, Co2+, Cd2+, Zn2+, Ni2+, Ag+, Mg2+, Ca2+, Li+, Na+, and K+. The results showed that 4-PACX was an effective colorimetric sensor against Cu2+ ions. The binding constant (K) value of the complexation between 4-PACX and Cu2+ ion was calculated as 4.62x108 M-2 and the detection limit value of the sensor as 5.1 mu M. Moreover, the fluorescence studies demonstrated that 4-PACX has great fluorogenic sensor potential with 0.16 mu M of detection limit. As a result, good yield, large coupling constant with Cu2+ ion (Ka = 13.972), applicability to aqueous samples, low detection limit, and high sensitivity were some of the advantages of the obtained sensor. | URI: | https://doi.org/10.1016/j.measurement.2023.112556 https://hdl.handle.net/20.500.13091/4340 |
ISSN: | 0263-2241 1873-412X |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections |
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