Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/44387
Title: Highly selective colorimetric schiff base chemosensor for detection of Cu2+
Authors: Liu, Dan
Zhu, Hua
Yang, Li
Keywords: Analytical chemistry;Colorimetric recognition;Selectivity;Copper;Schiff Base
Issue Date: Apr-2018
Publisher: NISCAIR-CSIR, India
Abstract: A highly selective colorimetric chemosensor for Cu2+ has been designed using a novel Schiff base based on 2-hydroxy-1-naphthaldehyde. On addition of Cu2+, 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 Cu2+ with the detection limit of 1.3×10-7 mol L-1. The mechanism of the colorimetric chemosensor for the detection of Cu2+ has been investigated in detail through UV-vis, Job plot, 1H NMR and FT-IR data. The results show that a stoichiometric complex (1:1) is formed between Schiff base and Cu2+, based on the molecular proton transfer process. The selectively of the chemosensor for detection of Cu2+ over common cations has been investigated by UV-vis spectroscopy. The test strip for Cu2+ prepared according to the principle of colorimetric chemosensor illustrates the advantages of this method in terms of convenience and effectiveness.
Page(s): 490-494
URI: http://nopr.niscair.res.in/handle/123456789/44387
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.57A(04) [April 2018]

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