Synthesis and characterization of a molecularly imprinted polymer for Pb2+ uptake using 2-vinylpyridine as the complexing monomer
Molecularly imprinted polymer (MIP) particles for selective extraction of Pb2+ ion from aqueous media were prepared using non-covalent molecular imprinting methods. 2-vinylpyridine was chosen as the complexing monomer. The imprinted polymer was synthesised by radical polymerisation. The template (Pb...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universiti Kebangsaan Malaysia
2010
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| Online Access: | http://journalarticle.ukm.my/7413/ http://journalarticle.ukm.my/7413/ http://journalarticle.ukm.my/7413/1/01_Md_Yeaminhossain.pdf |
| Summary: | Molecularly imprinted polymer (MIP) particles for selective extraction of Pb2+ ion from aqueous media were prepared using non-covalent molecular imprinting methods. 2-vinylpyridine was chosen as the complexing monomer. The imprinted polymer was synthesised by radical polymerisation. The template (Pb2+) was removed by leaching with 0.1 M HCl. The polymer particles (imprinted and non-imprinted) were characterised by spectroscopy. The effect of different parameters such as pH, kinetic, adsorption isotherm and selectivity were evaluated. The maximum adsorption capacity is 150 μg Pb2+/mg MIP. The adsorption efficiently occurred at pH 6. The selectivity coefficients of the imprinted polymer particles for Pb2+/Zn2+ and Pb2+/Al3+ were 13.55 and 1.71, respectively. |
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