Premium
Removal of environmentally impacting metal ions using functional resin poly(4‐styrene sulfonate‐ co ‐4‐vinylpyridine): Synthesis and metal ion retention properties
Author(s) -
Rivas Bernabé L.,
Muñoz Carla
Publication year - 2007
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.25825
Subject(s) - sulfonate , metal ions in aqueous solution , metal , styrene , reagent , chemistry , nuclear chemistry , polymerization , polymer chemistry , polymer , sodium , copolymer , organic chemistry
A water‐insoluble polymer, poly(sodium 4‐styrene sulfonate‐ co ‐4‐vinylpyridine), was synthesized by radical polymerization at different amounts (2, 4, 6, and 8 mol %) of crosslinking reagent (CR). The polymerization yield ranged from 83.5% to 100.0%. The resin is characterized by FT IR spectroscopy, thermal analysis, and scanning electron microscopy. The water absorption capacity, WAC (110 g/g dry resin), was obtained for the resin with a 2 mol % of CR. The metal ion affinity is studied by Batch equilibrium procedure under different experimental conditions for the cations: Hg(II), Cd(II), Zn(II), Pb(II), Cr(III), and Al(III). The metal ion affinity increased as the pH increased. At pH 5, the resin presented an affinity above 90% for all metal ions. Hg(II) presented the highest retention value at pH 2. The maximum metal ion retention capacity is determined at optimum pH for Hg(II), Cd(II), Pb(II), and Zn(II). © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 1769–1774, 2007