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Adsorption of Co 2+ and Cs 1+ by polyethylene membrane with iminodiacetic acid and sulfonic acid modified by radiation‐induced graft copolymerization
Author(s) -
Choi SeongHo,
Nho Young Chang
Publication year - 1999
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(19990207)71:6<999::aid-app15>3.0.co;2-c
Subject(s) - iminodiacetic acid , membrane , glycidyl methacrylate , adsorption , sulfonic acid , chelation , fiber , polymer chemistry , hollow fiber membrane , grafting , acrylic acid , polyethylene , chemistry , copolymer , nuclear chemistry , permeation , chemical engineering , materials science , inorganic chemistry , organic chemistry , polymer , biochemistry , engineering
Two modified hollow fiber membranes, the chelating hollow fiber membrane with iminodiacetic acid and the cation‐exchange hollow fiber membrane with sulfonic acid group (SO 3 H), were prepared by radiation‐induced grafting of glycidyl methacrylate onto polyethylene hollow fiber membrane and its subsequent iminodiacetation and sulfonation. The adsorption characteristics of Co 2+ and Cs 1+ for the 2 hollow fiber membranes were examined when the solutions of Co 2+ and Cs 1+ permeate across the 2 membranes, respectively. Without regard to the chelating membrane with iminodiacetic acid group and the cation‐exchange membrane with sulfonic acid group (SO 3 H), 2 membranes were observed to adsorb Co 2+ higher than Cs 1+ . The adsorption curves of Co 2+ by IDA group‐chelating fiber membrane in the presence of Na 1+ and Ca 2+ showed that the chelating hollow was found to have a very high selectivity for Co 2+ , even though there is a high concentration of Na 1+ and Ca 2+ in the inlet solution. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 71: 999–1006, 1999