Sorption properties of poly(styrene‐co‐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.

Water‐insoluble polymers containing amine, sulfonic acid, and carboxylic acid groups: Synthesis, characterization, and metal‐ion‐retention properties

“…The development of high‐performance adsorbents for removing heavy metal ions from wastewater is considered a research priority in environmental science 1–20…”

Water‐insoluble polymers with ability to remove metal ions

“…The development of high-performance adsorbents for removing heavy metal ions from wastewater is considered a research priority in the environmental field. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Chelating resins have been successfully used for enriching and separating some metal ions from aqueous solutions. They are very useful because they have a higher selectivity and larger adsorbing capacities than those of other adsorbents (e.g., activated carbons and metal oxides) and they are also easily eluted and regenerated.…”

Preparation and adsorption properties of the chelating resins containing carboxylic, sulfonic, and imidazole groups

“…Metal ions are nonbiodegradable in nature; their intake at a certain level is toxic 1. Attempts have therefore been made to incorporate a vast number of chelating groups into a polymer network 2–8. Of various common methods to prepare such chelating resins, by far the most common technique is the chemical modification of crosslinked polymers.…”

“…10 -12 In recent studies on complexing polymers in our laboratory, we reported on the synthesis of structures bearing amide, amine, ammonium, and carboxylic groups obtained by radical polymerization. [13][14][15][16][17][18] Complexing properties of these structures have been investigated by the batch equilibrium procedure to study their behavior in respect to different metal ions. We have now extended these investigations to the synthesis of insoluble polymers containing carboxylic, sulfonic, and imidazole groups.…”