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Reference type: Journal
Authors: Dai CM, Zhang J, Zhang YL, Liu SG
Article Title: Application of Molecularly Imprinted Polymers to Selective Removal of Clofibric Acid from Water.
Publication date: 2013
Journal: PLoS ONE
Volume: 8
Issue: (10)
Page numbers: e78167.
DOI: 10.1371/journal.pone.0078167
Alternative URL: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0078167

Abstract: A new molecularly imprinted polymer (MIP) adsorbent for clofibric acid (CA) was prepared by a non-covalent protocol. Characterization of the obtained MIP was achieved by scanning electron microscopy (SEM) and nitrogen sorption. Sorption experimental results showed that the MIP had excellent binding affinity for CA and the adsorption of CA by MIP was well described by pseudo-second-order model. Scatchard plot analysis revealed that two classes of binding sites were formed in the MIP with dissociation constants of 7.520.46 mg L-1 and 1144.2 mg L-1, respectively. The selectivity of MIP demonstrated higher affinity for CA over competitive compound than that of non-imprinted polymers (NIP). The MIP synthesized was used to remove CA from spiked surface water and exhibited significant binding affinity towards CA in the presence of total dissolved solids (TDS). In addition, MIP reusability was demonstrated for at least 12 repeated cycles without significant loss in performance.
Template and target information: clofibric acid


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