Design of High Efficiency Chelate Fibers with an Amine Group to Remove Heavy Metal Ions and pH-Related FT-IR Analysis

Dong Hun Shin; Young Gun Ko; Ung Su Choi; Woo Nyon Kim

doi:10.1021/ie030696f

Design of High Efficiency Chelate Fibers with an Amine Group to Remove Heavy Metal Ions and pH-Related FT-IR Analysis

Dong Hun Shin, Young Gun Ko, Ung Su Choi, Woo Nyon Kim

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

72 Citations (Scopus)

Abstract

We have been searching a new ion exchange material in the form of a fiber which could get large advantages over the conventional bead type. In this approach, an effective chelating fiber is prepared by the coupling of polyacrylonitrile (PAN) and ethylenediamine. A synthesized ion exchange fiber (poly(acrylo-amidino ethylene amine), PAEA) achieved 7.8 mequiv/g of adsorption capacity in a batch test. The coupling process and capacity were confirmed through FT-IR, acid-base neutralization titration, ICP, IC, and AAS. By means of verifying the bonding peaks (hydrogen and ionic bonding) under several pHs, molecular bonding between PAEA and ions (Cu²⁺ and CrO ₄^2-) was certified. Surface morphologies of chelating fibers and also after metal ion adsorption were examined by AFM. Compared with a batch test, the adsorption ability was low due to the diffusion path of ions in the dynamic test.

Original language	English
Pages (from-to)	2060-2066
Number of pages	7
Journal	Industrial and Engineering Chemistry Research
Volume	43
Issue number	9
DOIs	https://doi.org/10.1021/ie030696f
Publication status	Published - 2004 Apr 28

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Industrial and Manufacturing Engineering

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abstract = "We have been searching a new ion exchange material in the form of a fiber which could get large advantages over the conventional bead type. In this approach, an effective chelating fiber is prepared by the coupling of polyacrylonitrile (PAN) and ethylenediamine. A synthesized ion exchange fiber (poly(acrylo-amidino ethylene amine), PAEA) achieved 7.8 mequiv/g of adsorption capacity in a batch test. The coupling process and capacity were confirmed through FT-IR, acid-base neutralization titration, ICP, IC, and AAS. By means of verifying the bonding peaks (hydrogen and ionic bonding) under several pHs, molecular bonding between PAEA and ions (Cu2+ and CrO 42-) was certified. Surface morphologies of chelating fibers and also after metal ion adsorption were examined by AFM. Compared with a batch test, the adsorption ability was low due to the diffusion path of ions in the dynamic test.",

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AU - Choi, Ung Su

AU - Kim, Woo Nyon

PY - 2004/4/28

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Design of High Efficiency Chelate Fibers with an Amine Group to Remove Heavy Metal Ions and pH-Related FT-IR Analysis

Abstract

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