title: Synthesis of interpenetrating network hydrogel from poly(acrylic acid-co-hydroxyethyl methacrylate) and sodium alginate: modeling and kinetics study for removal of synthetic dyes from water.
abstract: Several interpenetrating network (IPN) hydrogels were made by free radical in situ crosslink copolymerization of acrylic acid (AA) and hydroxy ethyl methacrylate in aqueous solution of sodium alginate. N,N'-methylenebisacrylamide (MBA) was used as comonomer crosslinker for making these crosslink hydrogels. All of these hydrogels were characterized by carboxylic content, FTIR, SEM, XRD, DTA-TGA and mechanical properties. Swelling, diffusion and network parameters of the hydrogels were studied. These hydrogels were used for adsorption of two important synthetic dyes, i.e. Congo red and methyl violet from water. Isotherms, kinetics and thermodynamics of dye adsorption by these hydrogels were also studied.
authors.affiliation: Department of Chemistry, Bijoy Krishna Girls' College, Howrah, India.
authors.forename: Bidyadhar
authors.initials: B
authors.lastname: Mandal
authors.forename: Samit Kumar
authors.initials: SK
authors.lastname: Ray
mesh_terms: D000178:Acrylamides / Q000737:chemistry; D000327:Adsorption; D000464:Alginates / Q000737:chemistry*; D060326:Chemistry Techniques, Synthetic; D004396:Coloring Agents / Q000737:chemistry* / Q000302:isolation & purification*; D003224:Congo Red / Q000737:chemistry / Q000302:isolation & purification; D005840:Gentian Violet / Q000737:chemistry / Q000302:isolation & purification; D020723:Glucuronic Acid / Q000737:chemistry; D006603:Hexuronic Acids / Q000737:chemistry; D020100:Hydrogels / Q000138:chemical synthesis* / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007221:Industry; D007700:Kinetics; D055595:Mechanical Phenomena; D008689:Methacrylates / Q000138:chemical synthesis* / Q000737:chemistry; D008956:Models, Chemical; D011102:Polyhydroxyethyl Methacrylate / Q000138:chemical synthesis* / Q000737:chemistry; D014867:Water / Q000737:chemistry*
chemical_list: D000178:Acrylamides; D000464:Alginates; D004396:Coloring Agents; D006603:Hexuronic Acids; D020100:Hydrogels; D008689:Methacrylates; D014867:Water; D011102:Polyhydroxyethyl Methacrylate; C059480:poly(hydroxyethyl methacrylate-methacrylic acid)hydrogel; D003224:Congo Red; D020723:Glucuronic Acid; C021221:N,N'-methylenebisacrylamide; D005840:Gentian Violet
keywords: Dye adsorption; IPN; Regeneration; Sodium alginate; Swelling and network parameters; Thermodynamics