Abstract:
A new styrene-divinylbenzene copolymer (PC15) grafted with carboxylic acid groups was prepared. The
content of divinylbenzene in the copolymer was 15 %. The copolymer was characterized by Fourier transform infrared
(FTIR) spectroscopy, thermal analysis (DSC-TG), scanning electron microscopy (SEM), specific surface area and particle
size measurements. The PC15 copolymer was investigated as adsorbent for the removal of phenol, 3-aminophenol (3-AP)
and p-nitrophenol (p-NP) from aqueous solution. From the three investigated pollutants, the PC15 copolymer has shown
the highest removal efficiency for p-nitrophenol. The kinetic of p-NP adsorption onto PC15 copolymer was described by
the pseudo-second-order model and the equilibrium adsorption data were well fitted to the Redlich-Peterson isotherm. The
good adsorption capacity, recommend the PC15 copolymer as promising candidate for the removal of p-nitrophenol from
wastewater.
Keywords:
adsorption, functionalized copolymer, phenolic compounds
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