- P-ISSN 1225-0163
- E-ISSN 2288-8985
The cation-exchange adsorbent (CEA) was prepared by radiation-induced grafting of glycidyl methacrylate (GMA) onto polypropylene (PP) fabric and its subsequently phosphonation. The adsorption characteristics of <TEX>$Pb^{2+}$</TEX>, <TEX>$Cu^{2+}$</TEX> and <TEX>$Co^{2+}$</TEX> for the CEA were discussed. In the grafting of GMA onto PP fabric, the degree of grafting (%) increased with increasing reaction time, reaction temperature, and pre-irradiation dose. The maximum grafting yield was observed around 60% GMA concentration. The content of phosphoric acid ranges from 2.5 to 3.5 mmol/g with the 85% phosphoric acid. The adsorption of <TEX>$Pb^{2+}$</TEX>, <TEX>$Cu^{2+}$</TEX> and <TEX>$Co^{2+}$</TEX> by the CEA was enhanced with increasing phosphoric acid content. The order of adsorption capacity of CEA was <TEX>$Pb^{2+}$</TEX>><TEX>$Co^{2+}$</TEX>><TEX>$Cu^{2+}$</TEX>.