Sorption properties of poly(styrene‐<i>co</i>‐divinylbenzene) amine functionalized weak resin

Abstract

Abstract The poly(styrene‐ co ‐divinylbenzene) amine functionalized weak resin was studied as adsorbent of heavy metal ions from an aqueous solution by using the Batch equilibrium procedure. The resin adsorbed Hg(II) 56% (0.56 mEq/g) at pH 2, and 45% (1.13 mEq/g) of U(VI), 38% (0.36 mEq/g) of Pb(II) at pH 5 from an aqueous solution containing 1 g/L of each metal ion. It did not adsorb Cd(II), Zn(II). The equilibrium time was achieved during the first hour. The maximum load capacity for Hg(II) was 0.8 mEq/g (75 mg)/g dry resin. It is possible to recover around 60% of the resin after the treatment with 1–4 M HClO 4 and HNO 3 of the loaded Hg(II) resin. © 2001 John Wiley &amp; Sons, Inc. J Appl Polym Sci 80: 2123–2127, 2001