Surface adsorption of cationic surfactant from aqueous solution by modified poly (ethylene terephthalate) fibers

The purpose of this study is to investigate the graft copolymerization of 2-hydroxy propylmethacrylate (2HPMA)-Acrylic Acid (AA) compound within poly (Ethylene terephthalate) fibers in thepresence of Benzoyl Peroxide Bz2O2 initiator. The modified fibers have been used as a new adsorbentto eliminate Cethyl Pyridinium Bromide (CPB) for the aqueous solution. Fibers characterizations havebeen done using CEC, BET, TGA, FTIR, and SEM methods. The impacts of different parameterssuch as pH, adsorbate concentration, adsorbent quantity, and time have been investigated. pH=6.0,t=90 min, and qm=14.2 mg/g have been declared as favorable adsorption conditions. It is acceptabledue to the high stability of the PET fibers in acidic and alkaline environments.