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Adsorption properties of poly(acrylaminophosphonic‐carboxyl‐hydrazide)type chelating fiber for heavy metal ions
Author(s) -
Liu Ruixia,
Zhang Baowen,
Tang Hongxiao
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19981003)70:1<7::aid-app2>3.0.co;2-v
Subject(s) - adsorption , chelation , sorption , metal ions in aqueous solution , chemistry , hydrazide , metal , inorganic chemistry , polymer chemistry , langmuir adsorption model , nitric acid , nuclear chemistry , langmuir , fiber , organic chemistry
In this article, the adsorption properties of poly(acrylaminophosphonic‐carboxyl‐hydrazide) chelating fibers for Cu(II), Cd(II), Co(II), Mn(II), Pb(II), Zn(II), Ni(II), and Cr(III) are investigated by a batch technique. Based on the research results of binding capacity, adsorption isotherm, effect of pH value on sorption, and adsorption kinetics experiments, it is shown that the poly(acrylaminophosphonic‐carboxyl‐hydrazide) chelating fibers have higher binding capacities and good adsorption kinetic properties for heavy metal ions. The sorption of the metal ions on the chelating fibers is strongly dependent on the equilibrium pH value of the solution. The adsorption isotherms of Cu(II) and Cd(II) on the chelating fiber exhibit a Langmuir‐type equation. The adsorbed Cu(II), Cd(II), Zn(II), and Pb(II) could be eluted by diluted nitric acid. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 7–14, 1998