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Preparation and adsorption properties of poly(N‐vinylformamide/acrylonitrile) chelating fiber for heavy metal ions
Author(s) -
Lin Hai,
Kimura Mutsumi,
Hanabusa Kenji,
Shirai Hirofusa,
Ueno Nobuhiko,
Mori Yasuharu
Publication year - 2002
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/app.10598
Subject(s) - chelation , adsorption , metal ions in aqueous solution , acrylonitrile , fiber , amide , metal , hydrochloric acid , chemistry , polymer chemistry , nuclear chemistry , inorganic chemistry , materials science , polymer , organic chemistry , copolymer
In this article we report a new chelating fiber that was prepared from a hydrolyzate of poly( N ‐vinylformamide/acrylonitrile) by a wet‐spinning method. This fiber contains chelating groups, such as amidine groups, amino groups, cyano groups, and amide groups, with high densities. We examined the chelating abilities for several metal ions with this fiber, and present the morphological merit of the fibrous product compared with the globular resin. Based on the research results, it is shown that the fiber has higher binding capacities and better adsorption properties for heavy metal ions than the resin. The pH value of the metal ion solution shows strong influences on the adsorption of the metal ions. The maximum adsorption capacities of the fiber for Cu 2+ , Cr 3+ , Co 2+ , Ni 2+ , and Mn 2+ are 112.23, 88.11, 141.04, 108.06, and 73.51 mg/g, respectively. In mixed metal ions solution, the fiber adsorbs Cr 3+ , Cu 2+ and Co 2+ efficiently. The adsorbed metal ions can be quantitatively eluted by hydrochloric acid. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 1378–1386, 2002