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Highly selective colorimetric schiff base chemosensor for detection of Cu<sup>2+</sup><br />

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Title Statement Highly selective colorimetric schiff base chemosensor for detection of Cu<sup>2+</sup><br />
 
Added Entry - Uncontrolled Name Liu, Dan ; School of Chemistry and Chemical Engineering, Sichuan University of Arts and Science
Zhu, Hua ; School of Chemistry and Chemical Engineering, Sichuan University of Arts and Science
Yang, Li ; School of Chemistry and Chemical Engineering, Sichuan University of Arts and Science
 
Uncontrolled Index Term Analytical chemistry, Colorimetric recognition, Selectivity, Copper, Schiff Base
 
Summary, etc. <p>A highly selective colorimetric chemosensor<strong> </strong>for Cu<sup>2+</sup> has been designed using a novel<strong> </strong>Schiff base based on 2-hydroxy-1-naphthaldehyde. On addition of Cu<sup>2<strong>+</strong></sup>, the color of Schiff base solution changes from yellow to colorless, which can be viewed with the naked eye. The proposed chemosensor is sensitive to Cu<sup>2+</sup> with the detection limit of 1.3×10<sup>-7</sup> mol L<sup>-1</sup>. The mechanism of the colorimetric chemosensor for the detection of Cu<sup>2+</sup> has been investigated in detail through UV-vis, Job plot, <sup>1</sup>H NMR and FT-IR data. The results show that a stoichiometric complex (1:1) is formed between Schiff base and Cu<sup>2+</sup>, based on the molecular proton transfer process. The selectively of the chemosensor for detection of Cu<sup>2+</sup> over common cations has been investigated by UV-vis spectroscopy. The test strip for Cu<sup>2+</sup> prepared according to the principle of colorimetric chemosensor illustrates the advantages of this method in terms of convenience and effectiveness.</p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-10-19 12:49:45
 
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http://op.niscair.res.in/index.php/IJCA/article/view/19940
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 57, ##issue.no## 4 (2018): INDIAN JOURNAL OF CHEMISTRY- SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/19940/62300
 
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