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

Document Type : Research Paper


The purpose of this study is to investigate the graft copolymerization of 2-hydroxy propyl
methacrylate (2HPMA)-Acrylic Acid (AA) compound within poly (Ethylene terephthalate) fibers in the
presence of Benzoyl Peroxide Bz2O2 initiator. The modified fibers have been used as a new adsorbent
to eliminate Cethyl Pyridinium Bromide (CPB) for the aqueous solution. Fibers characterizations have
been done using CEC, BET, TGA, FTIR, and SEM methods. The impacts of different parameters
such 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 acceptable
due to the high stability of the PET fibers in acidic and alkaline environments.