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Highly selective colorimetric sensing of Cu2+ using a Schiff base derivative immobilized on polyvinyl alcohol microspheres

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Abstract

In this study, a naked-eye colorimetric sensor was fabricated based on a Schiff base (–SH) derivative immobilized onto polyvinyl alcohol (PVA) microspheres. The surface morphology of PVA-SH was characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The PVA-SH microspheres could selectively detect Cu2+ by a visible color change. This novel chemosensor demonstrated high sensitivity and selectivity for the detection of Cu2+, which can induce a color change of PVA-SH from white to yellow. PVA-SH exhibited a detection limit of 0.086 μM for Cu2+. Moreover, this simple and cost-efficient chemosensor was used for detecting Cu2+ in actual environmental water samples.

Graphical abstract: Highly selective colorimetric sensing of Cu2+ using a Schiff base derivative immobilized on polyvinyl alcohol microspheres

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Publication details

The article was received on 23 Apr 2018, accepted on 26 May 2018 and first published on 28 May 2018


Article type: Paper
DOI: 10.1039/C8NJ01973H
Citation: New J. Chem., 2018, Advance Article
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    Highly selective colorimetric sensing of Cu2+ using a Schiff base derivative immobilized on polyvinyl alcohol microspheres

    X. Bai, X. Zhang, H. Gu, F. Li, W. Huang, L. Liang and Z. Ye, New J. Chem., 2018, Advance Article , DOI: 10.1039/C8NJ01973H

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