POLY(ACRYLAMIDE-co-STYRENE SODIUM SULFONATE) AND POLY(2-ACRYLAMIDE-2-METHYL-1-PROPANESULFONIC ACID-co-ACRYLIC ACID) RESINS WITH REMOVAL PROPERTIES FOR Hg(II), Pb(II), Cd(II), and Zn(II)

Abstract

The water-insoluble polymers poly(acrylamide-co-styrene sodium sulfonate) (P(AAm-co-ESS)) and poly(2-acrylamide-2-methyl-1-propanesulfonic acidco-acrylic acid) (P(APSA-co-AAc)) were synthesized by radical polymerization. Parameters including the water sorption capacity, effect of the pH and reaction time, maximum retention capacity of the metal ions, elution, regeneration, and selectivity were studied. The commercial resin Amberlite IRP-64 was used for comparative purposes. Laboratory tests showed that both of the resins had better capacities to remove Pb(II), Cd(II), Zn(II), and Hg(II) from an aqueous solution by the batch method. P(AAm-co-ESS) and P(APSA-co-AAc) resins remove the metal ions faster and had better regeneration than commercial Amberlite IRP-64 resin.

Со(ІІ) and Ni(II) Removal from Aqueous Solutions by Polymer and Polymer/Silica Adsorbents with Sulfo and Carboxyl groups

“…According to the obtained results, the synthesized polymers and polymer/silica nanocomposites are hydrogel-type materials. 23 The capacity of the adsorbents depends on pH value of the solutions. With an increase in pH, the protonation of electrically charged functional groups decreases, which leads to the fact that the active centers become increasingly ionized and the competition between hydrogen ions and metal ions decreases, so metal ions are adsorbed to higher values.…”

Cr(III) REMOVAL FROM AQUEOUS SOLUTION BYION EXCHANGE RESINS CONTAINING CARBOXYLIC ACID AND SULPHONIC ACID GROUPS

“…The process of copolymerization and characterization were already studied by our investigation group [21,22]. The P(AAm-co-ESS), P(APSA-co-AAc), P(AAGA-co-APSA), and P(AAGA-co-ESS) resins were synthesized on a laboratory scale by radical polymerization using acrylamide and the hydrated sodium salt of 4-styrenesulfonate acid monomers for the P(AAm-co-ESS) resin,2-acrylamidoglyolic monohydrate acid and acrylic acid monomers for the P(APSA-co-AAc) resin,2-acrylamidoglyolic monohydrate acid and 2-acrylamide-2-methyl-1-propanesulfonic acid monomers for the P(AAGAco-APSA) resin, and 2-acrylamidoglyolic monohydrate acid and the hydrated sodium salt of 4-styrenesulfonate acid for the P(AAGA-co-ESS) resin.…”

“…Our investigation group in the past already studied the synthesis and better performance ofP(AAGA-co-APSA), P(AAGA-co-ESS), P(AAm-co-ESS), and P(APSA-co-AAc) cationic ion exchange resins for remotion of metal ions from water, in comparison with the commercial resin Amberlite IRP-64 [21,22]. The aim of this research is to study the cationic ion exchange resins P(AAGA-co-APSA), P(AAGA-co-ESS), P(AAm-co-ESS), and P(APSAco-AAc) for the removal of Cr(III) from aqueous solution and to identify the optimal removal parameters using batch and column sorption-elution methods.…”