Synthesis and characterization of poly (acrylaminophosphonic-carboxyl-hydrazide) chelating fibre

The poly(acrylarninophosphonic-carboxyl-hydrazide) chelating ion exchange f ibre was prepared by the amination and phosphorization reaction of the hydr azine-modified polyacrylonitrile fibre. The structure of the chelating fibr e and the same fibre saturated by Cu(II) and Ag(I) ions was investigated by IR spectrometer in detail. In addition, the crystalline and surface charac teristics of the chelating fibre were determined by X-ray diffraction and S EM. The higher binding capacities of the fibrous sorbent for Cu(II), Pb(II) , Zn(LI), Co(LI), Ni(II), Hg(II), Cd(LI), Mn(II), Cr(III) and Ag(I) and the effect of pH value on adsorption of the chelating fibre for Cu(II) and Hg( II) ions were examined. (C) 1999 Elsevier Science B.V. All rights reserved.