Characterization of AAm/4-Styrenesulfonic Acid Sodium Salt/PEG Hydrogels Crosslinked by PEGDA as Highly Swollen Adsorbents for the Effective Removal of Janus Green B from Aqueous Solutions

Abstract

In this study, it has been investigated that the \nincorporation of poly(ethylene glycol) and \n4-styrenesulfonic acid sodium salt into acrylamide hydrogel during free radical \nsolution polymerization synthesis for novel highly swollen adsorbents and for \nthe effective removal of some potential pollutants from aqueous solutions such \nas cationic dyes. Poly(ethylene glycol)diacrylate was used as a multifunctional \ncrosslinker. The main purpose of this study was to combine both monomers and a \npolymer in a new polymeric system. Dye sorption properties of the polymeric \nhydrogels were investigated by using cationic dye such as Janus Green B. \nSwelling and sorption studies were carried out at 25°C. For structural characterization, FT-IR analysis and SEM studies were \napplied. To determine the sorption behaviors of Janus Green B, some sorption parameters such as dye removal \ncapacity, adsorption percentage, and partition coefficient of the polymeric hydrogels \nwere investigated.