Hg(II) adsorption using amidoximated porous acrylonitrile/itaconic copolymers prepared by suspended emulsion polymerization
作者： Chunnuan Ji , Rongjun Qu , Hou Chen , Xiguang Liu , Changmei Sun
DOI: 10.2166/WST.2015.657
关键词:
摘要: Initially, porous acrylonitrile/itaconic acid copolymers (AN/IA) were prepared by suspended emulsion polymerization. Successively, the cyano groups in AN/IA converted to amidoxime (AO) reaction with hydroxylamine hydrochloride. The structures of and amidoximated (AO AN/IA) characterized infrared spectroscopy, scanning electron microscopy, structural analysis. adsorption properties AO for Hg(II) investigated. results show that has mesopores macropores, BET surface area 11.71 m2/g. It was found higher affinity Hg(II), maximum capacities 84.25 mg/g. also can effectively remove from different binary metal ions mixture systems. Furthermore, kinetics thermodynamics studied details. equilibrium quickly be achieved 4 h through study. process is belong second-order model, described Freundlich model.
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