Issue 16, 2017, Issue in Progress

Visible sequestration of Cu2+ ions using amino-functionalized cotton fiber

Abstract

In this study, an amino functionalized cotton fiber, which was used to adsorb Cu2+ ions via visible sequestration, was prepared and investigated. The amino-functionalized cotton fiber (named as ACF) exhibited enhanced adsorption, selectivity and distinct color response to Cu2+ ions in aqueous solutions. The absorbance responses of ACF to Cu2+ ions (named as ACF–Cu), obtained from the a fiber optic spectrometer, were monitored with different pH values and initial Cu2+ ion concentrations. A linear relationship between the absorbance response and the initial concentrations of Cu2+ ions was established and can be used for the determination of Cu2+ ion concentrations in aqueous solutions. Furthermore, in the interference study, ACF showed great selectivity to Cu2+ ions when other ions (e.g., Pb2+ or Zn2+ ions) coexisted with the Cu2+ ions in solution. The ability of ACF to effectively detect Cu2+ ions with the presence of other interfering ions in solution was of great significance.

Graphical abstract: Visible sequestration of Cu2+ ions using amino-functionalized cotton fiber

Article information

Article type
Paper
Submitted
29 Dec 2016
Accepted
30 Jan 2017
First published
02 Feb 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 9744-9753

Visible sequestration of Cu2+ ions using amino-functionalized cotton fiber

C. Liu, X. Lei, X. Liang, J. Jia and L. Wang, RSC Adv., 2017, 7, 9744 DOI: 10.1039/C6RA28810C

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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