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Reference type: Journal
Authors: Yang LF, Wang QY, Zhang SC, Hu SH
Article Title: Preparation and Characteristics of Nickel(II) Ion-imprinted Polymer.
Publication date: 2011
Journal: Journal of Instrumental Analysis
Volume: 30
Issue: (2)
Page numbers: 135-139,145.
Alternative URL: http://fxcsxb.com/ch/reader/view_abstract.aspx?file_no=20110204&flag=1

Abstract: A new nickel(II) ion-imprinted polymer(IIP) material was synthesized by using bulk polymerization of acrylamide as monomer,divinylbenzene as crosslinking agent,2,2-azobis-sobutyronitrile as initiator and methanol as solvent in the presence of nickel(II).The structure of polymer was studied by IR spectrometry.The result indicated that some characteristic groups in the ion-imprinted polymer interacted with the template.To get the optimal reaction conditions,the effect of the molar ratio of Ni2+/monomer and monomer/crosslinker,and the volume of solvent on adsorption properties of Ni(II) imprinted polymers was investigated.The best adsorption capacity of the polymer adsorbent was obtained when uisng Ni(II)-functional monomer of 1:4(molar ratio),functional monomer-crosslinking agent of 1:5(molar ratio) and solvent volume of 10 mL.The adsorption and selectivity capacity of nickel(II) ion-imprinted polymer for Ni(II) ion were studied.The results showed that the imprinted polymer had good affinity for Ni2+.The maximum adsorption capacity was 1.26 mg/g,which corresponded with the saturated adsorption(Qmax) of 1.35 mg/g.The sorption equilibrium time was 35 min and the optimum pH for quantitative nickel retention was 8.0.The relatively selective factor(K') of Ni to other metal ions were greater than 1.The IIP could be repeatedly used with high selectivity and stability for Ni(II).
Template and target information: nickel ion, Ni(II)
Author keywords: nickel(II), Ion-imprinted polymer, selective adsorption

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