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A promising absorbent of acrylic acid/poly(ethylene glycol) hydrogel prepared by glow-discharge electrolysis plasma

  • Research Article
  • Published:
Central European Journal of Chemistry

Abstract

An acrylic acid/poly(ethylene glycol) (AAc/PEG) hydrogel was synthesized in aqueous solution by a simple one-step method using glow-discharge electrolysis plasma (GDEP) technique. The structure of AAc/PEG hydrogel was characterized by Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). Factors influencing the adsorption of heavy-metal ions such as solution pH, contact time, initial heavy-metal ion concentration were examined systematically by batch experiments. Results showed that both chemical complexation and ion exchange played an important role for heavy-metal ion adsorption onto AAc/PEG hydrogel. The adsorption isothermals followed the Langmuir isotherm and the adsorption kinetics fitted the pseudo-second-order model at 25°C with a pH 6. In addition, AAc/PEG hydrogel can be also regenerated and re-used.

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China

    Quanfang Lu, Jie Yu, Jinzhang Gao, Wu Yang & Yan Li

  2. Editorial Department of the University Journal, Northwest Normal University, Lanzhou, 730070, China

    Quanfang Lu

Authors
  1. Quanfang Lu
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  2. Jie Yu
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  3. Jinzhang Gao
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  4. Wu Yang
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  5. Yan Li
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Correspondence to Jinzhang Gao.

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Lu, Q., Yu, J., Gao, J. et al. A promising absorbent of acrylic acid/poly(ethylene glycol) hydrogel prepared by glow-discharge electrolysis plasma. cent.eur.j.chem. 10, 1349–1359 (2012). https://doi.org/10.2478/s11532-012-0055-9

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  • DOI: https://doi.org/10.2478/s11532-012-0055-9

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