Naphthaldehyde-Based Schiff Base Chemosensor for the Dual Sensing of Cu2+ and Ni2+ Ions

被引：9
作者：
Singh, Jasbir [1 ]
Mohan, Brij [2 ]
Kumar, Ashwani [3 ]
Bhardwaj, Pallavi [1 ]
Chauhan, Ravish K. [4 ]
机构：
[1] Baba Mastnath Univ, Dept Chem, Rohtak 124021, India
[2] Univ Lisbon, Inst Mol Sci, Ctr Quim Estrutural, Inst Super Tecn, Ave Rovisco Pais, P-1049001 Lisbon, Portugal
[3] Kurukshetra Univ Kurukshetra, Dept Chem, Kurukshetra 136119, India
[4] Indira Gandhi Natl Coll, Dept Chem, Kurukshetra 136132, India
来源：
JOURNAL OF FLUORESCENCE | 2024年 / 34卷 / 01期
关键词：
Sensor; UV-visible; Detection limit; Reversibility; Fluorescence; FLUORESCENT CHEMOSENSOR; METAL-IONS; BIOLOGICAL-SYSTEMS; SENSOR; COUMARIN; ENHANCEMENT; COPPER(II); NICKEL(II); WATER; PB2+;
D O I：
10.1007/s10895-023-03245-9
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
In this study, a simple Schiff base sensor 1-(((4-nitrophenyl)imino)methyl)naphthalen-2-ol(NNM) has been used for chemosensing of metal ions. The metal sensing properties of sensor NNM have been investigated using UV-visible and fluorescence spectroscopic approaches. The spectral investigations revealed a red shift in absorption spectra and quenching in the emission band of the ligand molecule in the presence of Cu2+ and Ni2+ ions. The binding stoichiometry of sensor NNM for the analyte (Cu2+ and Ni2+ ions) has been investigated by the Job's plot analysis and found to be 1:1 (NNM:Analyte). The data of the Benesi-Hildebrand plot demonstrated that NNM detected Cu2+ and Ni2+ ions in nanomolar quantity. The binding insights among NNM and analytes (Cu2+ and Ni2+ ions) have been confirmed by shifted IR signals. Moreover, the reusabilty of the sensor has been investigated using an EDTA solution. In addition, the sensor NNM also successfully applied to real water samples for the identification and measurement of Cu2+ and Ni2+ ions. Hence, this system could be highly applicable in environmental and biological applications.
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页码：149 / 157
页数：9
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