Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 20, Issue 5, Pages 3714-3725Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2013.12.071
Keywords
Hydrogel; Network parameters; Isotherms; Kinetics; Thermodynamics
Funding
- Council of scientific and industrial research (CSIR)
- Department of Science and Technology (DST), Govt. of India
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Several semi-interpenetrating network (Semi-IPN) hydrogels were synthesized by free radical copolymerization of acrylamide, hydroxyethyl methacrylate and N'N'-methylene bis acrylamide crosslinker (MBA) in presence of starch. These hydrogels were characterized by FTIR, DTA-TGA, XRD and SEM. The hydrogel showing the highest swelling% in water was used for removal of low (2.5-40 mg/L) and high (200-500 mg/L) concentration range of malachite green and methyl violet dyes from water. The hydrogel showed high adsorption for both of these dyes. Isotherms, kinetics, mass transfer coefficients and thermodynamics of dye adsorption were also studied. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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