Premium
Adsorption of cationic dyes on poly(acrylic acid‐ co ‐sodium acrylate‐ co ‐acrylamide) superabsorbents
Author(s) -
Shukla Neelesh Bharti,
Madras Giridhar
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.35479
Subject(s) - cationic polymerization , adsorption , acrylic acid , acrylamide , polymer chemistry , chemistry , nuclear chemistry , ethylene glycol , polymerization , methyl acrylate , acrylate , acriflavine , swelling , ethylene glycol dimethacrylate , chemical engineering , polymer , organic chemistry , monomer , biochemistry , engineering , methacrylic acid
Inverse suspension polymerization was carried out to synthesize poly(acrylic acid‐ co ‐sodium acrylate‐ co ‐acrylamide) superabsorbent polymers (SAPs) crosslinked with ethylene glycol dimethacrylate (EGDMA). The equilibrium swelling capacities of the SAPs, determined by swelling them in DI water, were found to vary with the acrylamide (AM) content. The SAPs were used to adsorb four cationic dyes (Acriflavine, Auramine‐O, Azure‐I and Pyronin‐Y). The effect of AM content in the SAPs on the adsorption of the cationic dyes was investigated. Different initial concentrations of Azure‐I were used with the same amount of the SAP to explore the effect of initial dye concentration on the adsorption. The effect of the adsorbent amount was investigated by taking different amounts of SAP with a fixed initial concentration of Acriflavine. The kinetics of the dye adsorption was modeled by a first order model and the equilibrium amount of the dye adsorbed, adsorption rate coefficients, removal efficiency and partition coefficients were determined. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012