Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 22, Issue -, Pages 92-102Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2014.06.029
Keywords
Hydrogel; Synthesis; Swelling; Dye adsorption; Kinetics; Adsorption isotherms
Funding
- Council of scientific and industrial research (CSIR)
- Department of Science and Technology (DST), Govt. of India
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Several hydrogels were synthesized from sodium alginate and copolymer of acrylic acid and acrylamide. These hydrogels were characterized by FTIR, XRD, DTA-TGA, swelling and diffusion characteristics. The hydrogel showing the best result for swelling was used for adsorption of Basic fuschin (BF) and Methyl violet (MV) dyes. The hydrogel showed high adsorption and removal% for these dyes for both low (2.5-25 mg/L) and high range (100-600 mg/L) of feed concentration. The dye adsorption data were fitted to different kinetics and adsorption isotherm models. The external mass transfer coefficient, diffusion coefficient and thermodynamic parameters of dye adsorption were also determined. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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