title: Novel Cu (II) magnetic ion imprinted materials prepared by surface imprinted technique combined with a sol-gel process.
abstract: A novel Cu (II) magnetic ion-imprinted polymer (MIIP) was synthesized by surface imprinting technique combined with a sol-gel process. The adsorbent of Cu (II)-MIIP shows higher capacity and selectivity than that of magnetic non-imprinted polymers (MNIP). Adsorption capacities of Cu (II)-MIIP and MNIP are 24.2 and 5.2mg/g for Cu (II) ions, respectively. The selectivity coefficients of the Cu (II)-MIIP for Cu (II)/Zn (II) and Cu (II)/Ni (II) are 91.84 and 133.92, respectively. Kinetics studies show that the adsorption process obeys pseudo-second-order rate mechanism with an initial adsorption rate of 132.48 for Cu (II)-MIIP and 2.41mgg(-1)min(-1) for MNIP. In addition, no obvious decrease was observed after up to five adsorption cycles, indicating that the Cu (II)-MIIP is of high stability.
authors.affiliation: Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang 330063, PR China.
authors.forename: Xubiao
authors.initials: X
authors.lastname: Luo
authors.forename: Shenglian
authors.initials: S
authors.lastname: Luo
authors.forename: Youcai
authors.initials: Y
authors.lastname: Zhan
authors.forename: Hongying
authors.initials: H
authors.lastname: Shu
authors.forename: Yining
authors.initials: Y
authors.lastname: Huang
authors.forename: Xinman
authors.initials: X
authors.lastname: Tu
mesh_terms: D000327:Adsorption; D002621:Chemistry / Q000379:methods*; D003300:Copper / Q000737:chemistry*; D007477:Ions; D007700:Kinetics; D008280:Magnetics; D008956:Models, Chemical; D044367:Phase Transition; D011108:Polymers / Q000737:chemistry; D013499:Surface Properties; D013997:Time Factors; D014961:X-Ray Diffraction; D015032:Zinc / Q000737:chemistry
chemical_list: D007477:Ions; D011108:Polymers; D003300:Copper; D015032:Zinc