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Competitive removal of Pb 2+ , Cd 2+ , and Zn 2+ by poly(acrylamide‐ co ‐maleic acid) hydrogels/differential pulse polarographic determination
Author(s) -
İnam Recai,
Gümüş Yeliz,
Çaykara Tuncer
Publication year - 2004
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.21179
Subject(s) - self healing hydrogels , maleic acid , polarography , acrylamide , adsorption , aqueous solution , ionic strength , chemistry , nuclear chemistry , inorganic chemistry , polymer chemistry , materials science , copolymer , polymer , organic chemistry
Poly(acrylamide‐ co ‐maleic acid) [P(AAm/MA)] hydrogels, with various compositions, were prepared from ternary mixtures of acrylamide (AAm)/maleic acid (MA)/water by using 60 Co γ‐rays. The effect of composition of these hydrogels, on the competitive removal of Pb 2+ , Cd 2+ , and Zn 2+ ions from aqueous solution, was investigated. The hydrogel compositions and their adsorption behaviors were determined by use of differential pulse polarography, a very sensitive electroanalytical technique. It was observed that the external stimuli of pH, temperature, and ionic strength have an important role on the adsorption. The increments of MA content in P(AAm/MA) hydrogels caused a significant increase in the adsorption these ions. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 2401–2406, 2004