Enhanced Adsorption Properties of Poly(2-Acrylamido-2-Methyl-1-Propansulfonic Acid)/Silica Composite Materials for Heavy Metal Ion Removal

Autor:	Xian Ning Li, Jing Jing Wang
Rok vydání:	2012
Předmět:	In situ Aqueous solution Chemistry Metal ions in aqueous solution technology industry and agriculture macromolecular substances General Medicine complex mixtures Metal Composite hydrogels Adsorption Chemical engineering Polymerization visual_art Self-healing hydrogels visual_art.visual_art_medium
Zdroj:	Applied Mechanics and Materials. 164:154-157
ISSN:	1662-7482
DOI:	10.4028/www.scientific.net/amm.164.154
Popis:	Poly(2-acrylamido-2-methyl-1-propansulfonic acid)(PAMPS)/silica composite hydrogels have been prepared by in situ free-radical polymerization. The composite hydrogels were used to remove heavy metal ions from aqueous solution under the non-competitive condition. The results showed that the adsorption capacity of the hydrogels increased with the pH values and silica content in the formulation. Furthermore, the synergistic complexation of metal ions was found in the adsorption studies. Regeneration studies suggested that metal rebinding capacity of the hydrogels did not change significantly through repeated applications compared with the first run.
Databáze:	OpenAIRE
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