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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Preparation of Polypropylene Fabric Adsorbent Containing Phosphoric Acid by Radiation-Induced Graft Copolymerization, and Adsorption of <TEX>$Cu^{2+}$</TEX>, <TEX>$Pb^{2+}$</TEX> and <TEX>$Co^{2+}$</TEX>

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1999, v.12 no.1, pp.7-12
Park, Keun-Su
Chang, Choo-Hwan
Kim, Hak-Jin
Choi, Seong-Ho
Nho, Young Chang
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Abstract

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>.

keywords
graft copolymerization, radiation/induce


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