期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 50, 期 10, 页码 6355-6361出版社
AMER CHEMICAL SOC
DOI: 10.1021/ie102177e
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资金
- National Science Fund for Distinguished Young Scholars [50725825]
- National Natural Science Foundation of China [50978132]
- Natural Science Foundation of Jiangxi Province of China [2009GQH0083]
- Program of Jiangxi Province of China [2009BSB09800]
A novel Cu(II) magnetic ion-imprinted polymer (MIIP) was prepared via the sol gel method. The Cu(II)-MIIP exhibited good magnetic property and thermal stability. The binding characteristics of Cu(II)-MIIP were studied by adopting both static and dynamic adsorption experiments. The maximum adsorptions calculated from the Langmuir isotherm are 58.20 and 23.10 mg/g for Cu(II)-MIIP and magnetic nonimprinted polymer (MNIP), respectively. The kinetics studies showed that the adsorption process obeyed a pseudo-second-order kinetic model. The selectivity coefficients of the Cu(II)-MIIP for Cu(II) in the presence of Zn(II) and Ni(II) are 49.44 and 50.38, respectively. The relative selectivity coefficients of Cu(II)-MIIP for Cu(II)/Zn(II) and Cu (II)/Ni(II) are 12.36 and 8.73, respectively. Moreover, Cu(II)-MIIP could be used five times without obvious deterioration in their adsorption capacities.
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