Nik Rohani, Nik Mustapa and Muhammad Nor Fazli, Abd Malek and M. M., Yusoff and Lutfor, M. R. (2016) Ion Imprinted Polymers for Selective Recognition and Separation of Lanthanum and Cerium Ions from other Lanthanide. Separation Science and Technology, 51 (7). pp. 2762-2771. ISSN 0149-6395 (Print) 1520-5754 (Online). (Published)
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The lanthanide-ion-imprinted polymers (L-IIPs) were synthesized from La3+ or Ce3+ ion and complexing agents either Schiff base or azobenzene with ethylene glycol-dimethylacrylate as cross-linking agent, 4-vinylpyridine monomer and 2,2-azobisisobutyronitrile initiator. After polymerization, cavities in the polymer particles corresponding to the La3+/Ce3+ ions were created by leaching in 20 mL of HCl solution (2.0 mol L−1). The maximum sorption capacity is found to be 25.0, 24.3, 24.5 and 24.7 mg g−1 of La-IIP-Schiff, La-IIP-Azo, Ce-IIP-Schiff, Ce-IIP-Azo polymers, respectively at pH 6. The L-IIPs gave good selectivity to La or Ce ions in the presence of other selected lanthanide cations with close atomic radius. The L-IIPs were reused and regenerated for ten times without a significant decrease in binding affinity.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Azobenzene-based ligand; La(III) and Ce(III) ion-imprinted polymers; Schiff base ligand; separation |
| Subjects: | Q Science > QD Chemistry |
| Faculty/Division: | Faculty of Industrial Sciences And Technology |
| Depositing User: | Prof. Dr. Mashitah Mohd Yusoff |
| Date Deposited: | 03 Feb 2017 01:05 |
| Last Modified: | 24 May 2018 03:02 |
| URI: | http://umpir.ump.edu.my/id/eprint/16250 |
| Download Statistic: | View Download Statistics |
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