Journal of the Turkish Chemical Society, Section A: Chemistry, cilt.2026, sa.1, 2026 (Scopus, TRDizin)
In this study, poly(ethylene terephthalate) (PET) fiber was treated with glycidyl methacrylate (GMA) using benzoyl peroxide (Bz2O2) to start the reaction in water (GMA-g-PET). Then, hydroxylamine (HA) was chemically attached to the GMA-treated PET fiber (HA-GMA-g-PET). The results indicated that a nitrogen atom was connected to 95% of the GMA-treated PET fiber at a rate of 5.99%, with the reaction happening at a temperature of 75 °C for 75 min. Hydroxylamine (HA) was then covalently attached to the GMA-grafted PET fiber (HA-GMA-g-PET). The results showed that 95% of the GMA-grafted PET fiber had a nitrogen atom attached at a rate of 5.99%, with the reaction taking place at 75 °C for 75 min. The removal of Cu(II), Ni(II), and Cd(II) ions from the aqueous solution by the HA-GMA-g-PET fiber was examined by the batch equilibration technique. Researchers investigated how parameters such as pH, adsorption temperature, adsorption time, and initial ion concentration affect the adsorption capacity of HA-GMA-g-PET fibers. The maximum adsorption capacities of the reactive fiber at a concentration of 300 mg/L for Cu(II), Ni(II), and Cd(II) ions at a pH value of 6 were found to be 27.76 mg/g, 63.86 mg/g, and 66.73 mg/g, respectively. It was determined that the adsorption of Cu(II), Ni(II), and Cd(II) ions onto HA-GMA-g-PET fiber attained equilibrium at 90 min, 45 min, and 120 min, respectively. It was observed that at a pH value of 6, HA-GMA-g-PET fiber is more selective for Cd(II) ions in the mixtures of Cu(II)-Cd(II), Ni(II)-Cd(II), and Cu(II)-Ni(II)-Cd(II).