Polystyrene resin was covalently functionalized with diethanolamine and then decorated with magnetite
nanoparticles by a novel and simple co-precipitation method using iron(II) sulfate as precursor. The
products were characterized by Fourier transform infrared spectroscopy, elemental analysis, X-ray
diffraction, Mössbauer spectroscopy, field-emission scanning electron microscopy and vibrating sample
magnetometer. Adsorption of p-toluic acid (p-TA) onto magnetite-decorated polystyrene (MAG-PS) was
studied and compared with that of diethanolamine-functionalized polystyrene and a commercial anion
exchange resin. Results showed that the magnetite nanoparticles with an average size of 20.4 nm were
successfully formed on the surface of polystyrene resin, and MAG-PS was exhibited high affinity for the
removal of p-TA
کلید واژگان :
Magnetic separation Adsorption Polystyrene Magnetite nanoparticles p-Toluic acid
