Synthesis and characterization of molecularly imprinted polymers for the remediation of PCBs and dioxins in aqueous environments

This paper, reports on the approach devised to remediate water sources contaminated with pcbs and dioxins. theapproach reported is based on the synthesis of highly selective molecularly imprinted polymers (mips). the paperelaborates the materials, procedures and protocols devised and followed for the synthesis of mips. the characterizationof the synthesized mips and nips were performed using a number of techniques, such as ftir, sem, etc. the ftirresults show a broad oh stretching vibration peaks associated with methacrylic acid carboxylic group (cooh). at3710 cm?1 for nip and 3588 cm?1 for mip, ?ch2 stretching peak at 2953 cm?1for nip, peaks due to the presenceof methylene group in both maa and edma appearing at 2951 cm?1 for mip. the carbonyl group c = o stretching peakwas observed in both mip and nip at 1721 cm?1 and this might have originated from maa and edma respectively inboth mip and nip. weak combination bands from 1637 cm?1 to 1249 cm?1 and sharp bands at 1143 cm?1 specificallyon mips spectra indicated the presence of aromatic ring of the template. the surface area of mip was found to be74.0010 m2/g, thus larger than that for nip which was 58.6519 m2/g due to the presence of cavities on mips. the fitof the langmuir model was found to be r 2 = 0.5842 while freundlich model were found to be r2 = 0.3241, signifyingthat better correlation was with langmuir than freundlich.