Ion imprinted cryogel-based supermacroporous traps for selective separation of cerium(Ⅲ) in real samples  

作　　者：Rüstem Kecili brahim Dolak Berrin Ziyadanogullari Arzu Ersoz Ridvan Say 

机构地区：[1]Yunus Emre Vocational School of Health Services, Anadolu University,26470 Eskisehir, Turkey [2]Vocational School of Technical Sciences, Dicle University ,21280 Diyarbakir, Turkey [3]Science Faculty, Department of Chemistry, Dicle University,21280 Diyarbakir, Turkey [4]Bionkit Co., Ltd.,26470 Eskisehir, Turkey [5]Department of Chemistry, Science Faculty, Anadolu University, 26470 Eskisehir, Turkey

出　　处：《Journal of Rare Earths》2018年第8期857-862,共6页稀土学报（英文版）

摘　　要：This study demonstrates the preparation and characterization of a novel ion imprinted cryogel which exhibits high affinity and selectivity towards Ce（Ⅲ） ions in aqueous solutions and bastnasite ore samples.2-Hydroxyethyl methacrylate（HEMA） and N-methacryloylamido antipyrine（MAAP） were used as functional monomers for the preparation of Ce（Ⅲ） imprinted cryogel. The effects of various factors such as initial Ce（Ⅲ） concentration, flow rate, pH, interaction time and ionic strength on the Ce（Ⅲ） binding to the prepared ion imprinted cryogels were also studied. The binding equilibrium for Ce（Ⅲ） is obtained in30 min at the flow rate of 0.5 mL/min. The maximum binding capacity of the prepared ion imprinted cryogel towards Ce（Ⅲ） is obtained as 36.58 mg/g at optimum conditions. The selectivity of the prepared ion imprinted cryogel towards Ce（Ⅲ） in the presence of other possible interfering lanthanide ions such as La（Ⅲ） and Nd（Ⅲ） were also performed. The obtained results showed that the prepared ion imprinted cryogel exhibits high selectivity and sensitivity towards Ce（Ⅲ） ions. The limit of detection（LOD） was found as 50 μg/L.This study demonstrates the preparation and characterization of a novel ion imprinted cryogel which exhibits high affinity and selectivity towards Ce（Ⅲ） ions in aqueous solutions and bastnasite ore samples.2-Hydroxyethyl methacrylate（HEMA） and N-methacryloylamido antipyrine（MAAP） were used as functional monomers for the preparation of Ce（Ⅲ） imprinted cryogel. The effects of various factors such as initial Ce（Ⅲ） concentration, flow rate, pH, interaction time and ionic strength on the Ce（Ⅲ） binding to the prepared ion imprinted cryogels were also studied. The binding equilibrium for Ce（Ⅲ） is obtained in30 min at the flow rate of 0.5 mL/min. The maximum binding capacity of the prepared ion imprinted cryogel towards Ce（Ⅲ） is obtained as 36.58 mg/g at optimum conditions. The selectivity of the prepared ion imprinted cryogel towards Ce（Ⅲ） in the presence of other possible interfering lanthanide ions such as La（Ⅲ） and Nd（Ⅲ） were also performed. The obtained results showed that the prepared ion imprinted cryogel exhibits high selectivity and sensitivity towards Ce（Ⅲ） ions. The limit of detection（LOD） was found as 50 μg/L.

关 键 词：Molecularly imprinted polymers（MIPs） Ion imprinting Supermacroporous cryogels Cerium（Ⅲ） Cryogel-based traps Separation 

分 类 号：O562.5[理学—原子与分子物理] S646.903.5[理学—物理]