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

• Authors: Quanfang Lu , Jie Yu , Jinzhang Gao , Wu Yang , Yan Li
• Languages of publication: EN

Abstracts

EN

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. [...]

Keywords

EN

Hydrogel; Adsorption; Heavy-metal ions; Glow-discharge electrolysis plasma (GDEP); Poly(ethylene glycol) (PEG)

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2012
• Volume: 10
• Issue: 4
• Pages: 1349-1359

Dates

published

1 - 8 - 2012

online

29 - 5 - 2012

Contributors

author

Quanfang Lu

author

Jie Yu

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

author

Jinzhang Gao

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

author

Wu Yang

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

author

Yan Li

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

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Identifiers

DOI

10.2478/s11532-012-0055-9