Preparation of new adsorbent containing hydroxamic acid groups by radiation-induced grafting for metal ion adsorption

Suwanmala, P.*; Hoshina, Hiroyuki; Seko, Noriaki; Tamada, Masao

no journal, , 

In the present work, a new adsorbent containing hydroxamic acid groups was synthesized by radiation-induced graft copolymerization of methyl acrylate (MA) onto nonwoven fabric composed of polyethylene-coated polypropylene fiber. Conversion of the ester groups of the grafted copolymer into the hydroxamic groups was performed by treatment with an alkaline solution of hydroxylamine (HA). Adsorbent containing hydroxamic acid groups can adsorb 99%of UO , 98%of V, 97%of Pb, and 96%of Al at pH, 5, 4, 6, and 4, respectively after contacted with 100 ppb metal solution for 24 h.