Poly (Acrylamide-co-Acrylic Acid) Hydrogel Induced by Glow- Discharge Electrolysis Plasma and Its Adsorption Properties for Cationic Dyes

YU Jie(俞洁); YANG Gege(杨格格); PAN Yuanpei(潘元沛); LU Quanfang(陆泉芳); YANG Wu(杨武); GAO Jinzhang(高锦章)

doi:10.1088/1009-0630/16/8/07

Plasma Science and Technology > 2014 > 16(8): 767-776. > DOI: 10.1088/1009-0630/16/8/07

YU Jie(俞洁), YANG Gege(杨格格), PAN Yuanpei(潘元沛), LU Quanfang(陆泉芳), YANG Wu(杨武), GAO Jinzhang(高锦章). Poly (Acrylamide-co-Acrylic Acid) Hydrogel Induced by Glow- Discharge Electrolysis Plasma and Its Adsorption Properties for Cationic Dyes[J]. Plasma Science and Technology, 2014, 16(8): 767-776. DOI: 10.1088/1009-0630/16/8/07

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Poly (Acrylamide-co-Acrylic Acid) Hydrogel Induced by Glow- Discharge Electrolysis Plasma and Its Adsorption Properties for Cationic Dyes

1 Gansu Key Lab of Bioelectrochemistry and Environmental Analysis, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China 2 Editorial Department of Journal of Northwest Normal University, Northwest Normal University, Lanzhou 730070, China

Funds: supported by National Natural Science Foundation of China (No. 21367023), Natural Science Foundation of Gansu Province, China (No. 1208RJZA161) and Key Project of Young Teachers’ Scientific Research Promotion of Northwest Normal University of China (Nos. NWNU-LKQN-10-16 and NWNU-LKQN-12-9)

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Received Date: June 20, 2013

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Abstract

In this paper, poly (acrylamide-co-acrylic acid) (P(AM-co-AA)) hydrogel was pre- pared in an aqueous solution by using glow-discharge electrolysis plasma (GDEP) induced copoly- merization of acrylamide (AM) and acrylic acid (AA), in which N,N’-methylenebisacrylamide (MBA) was used as a crosslinker. A mechanism for the synthesis of P(AM-co-AA) hydrogel was proposed. To optimize the synthesis condition, the following parameters were examined in detail: the discharge voltage, discharge time, the content of the crosslinker, and the mass ratio of AM to AA. The results showed that the optimum pH range for cationic dyes removal was found to be 5.0-10.0. The P(AM-co-AA) hydrogel exhibits a very high adsorption potential and the ex- perimental adsorption capacities for Crystal violet (CV) and Methylene blue (MB) were 2974.3 mg/g and 2303.6 mg/g, respectively. The adsorption process follows a pseudo-second-order kinetic model. In addition, the adsorption mechanism of P(AM-co-AA) hydrogel for cationic dyes was also discussed.
- glow-discharge electrolysis plasma (GDEP),
- poly (acrylamide-co-acrylic acid) (P(AM-co-AA)),
- hydrogel,
- adsorption,
- cationic dyes

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