Cationic poly(Acrylonitril-co-3-Acrylamidopropyl)trimethylammonium chloride) (p(AN-co-APTMACl)) macro gels were synthesized from acrylonitrile (AN) and 3-acrlylamidopropil-trimethyl ammonium chloride (APTMACl) monomers with different mole ratios. Synthesized hydrogels were amidoximated in order to convert the hydrophobic nitrile groups to hydrophilic amidoxime groups. Before and after the amidoximation reaction, hydrogels swelling behaviors in DI water and at different pHs were investigated. Fourier Transform Infrared Spectroscopy and Thermal Gravimetric Analysis were used for structural and thermal characterization of the hydrogels. The removal of arsenic (V) and chromium (VI) from aqueous medium by these hydrogels were investigated. Different parameters affecting the adsorption performance of the hydrogels such as the initial metal concentration, the pH  of the medium, hydrogel amounts, and the contact times were investigated. Various kinetics models were applied to the adsorption of arsenic (V), and chromium (VI) ions into the prepared hydrogels.

Uptake of As(V) and Cr(VI) from aqueous environment by cationic poly(Acrylonitril-co-3-Acrylamidopropyl)trimethylammonium chloride) hydrogels

245th National Meeting (2013)

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