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+ 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+)...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Penerbit UKM
2010
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/16924/1/Synthesis%20and%20characterization%20of%20a%20molecularly%20imprinted%20polymer%20for%20Pb2%2B%20uptake%20using%202-vinylpyridine%20as%20the%20complexing%20monomer.pdf |
| Summary: | Molecularly imprinted polymer (MIP) particles for selective extraction of Pb2+ 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 IR 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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