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Abstract A hydrogel based on poly(N-isopropylacrylamide) (NIPA) crosslinked with the diacryloyl derivative of cystine (BISS) was synthesized using the free radical polymerization. The NIPA-BISS hydrogel rich in cystine appeared to… Click to show full abstract
Abstract A hydrogel based on poly(N-isopropylacrylamide) (NIPA) crosslinked with the diacryloyl derivative of cystine (BISS) was synthesized using the free radical polymerization. The NIPA-BISS hydrogel rich in cystine appeared to be a competitive sorbent and has been applied to efficiently remove heavy metal pollutants, mainly cadmium and lead ions, from water. Sorption capacity, kinetics of sorption, swelling behavior and effect of pH on sorption were investigated. Scanning electron microscopy and FTIR analysis were employed to monitor the changes that took place in the NIPA-BISS hydrogels after the adsorption of Cd(II) and Pb(II).
Journal Title: Journal of environmental chemical engineering
Year Published: 2018
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