화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.22, 92-102, February, 2015
Adsorption of industrial dyes by semi-IPN hydrogels of Acrylic copolymers and sodium alginate
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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.
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