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Reference type: Journal
Authors: Li H, Xu WZ, Wang NW, Ma XH, Niu DD, Jiang B, Liu LK, Huang WH, Yang WM, Zhou ZP
Article Title: Synthesis of magnetic molecularly imprinted polymer particles for selective adsorption and separation of dibenzothiophene.
Publication date: 2012
Journal: Microchimica Acta
Volume: 179
Issue: (1-2)
Page numbers: 123-130.
DOI: 10.1007/s00604-012-0873-7

Abstract: We report on the synthesis of magnetic molecularly imprinted polymers (m-MIPs) for the selective adsorption and separation of dibenzothiophene (DBT) from oil solution. The m-MIPs were characterized by Fourier transform infrared analysis, transmission electron microscopy, surface area and porosity analysis, and vibrating sample magnetometry. Batch mode adsorption studies were carried out to investigate the adsorption kinetics, adsorption isotherms and selective recognition. The adsorption kinetics were modeled with the pseudo-first-order and pseudo-second-order kinetics, and the adsorption isotherms were fitted with Langmuir and Freundlich models. The m-MIPs can selectively recognize DBT over similar compounds. Static adsorption experiments showed that the m-MIPs display excellent recognition capacity, selective affinity for DBT, and superparamagnetism in presence of an external magnetic field.
Template and target information: dibenzothiophene, DBT
Author keywords: adsorption, dibenzothiophene, Fe3O4@SiO2@MIPs, Magnetic molecularly imprinted polymers, selectivity


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