MIPdatabase
Authors: Xu WZ, Zhou W, Bian LH, Huang WH, Wu XY
Article Title: Preparation of molecularly imprinted polymer by surface imprinting technique and its performance for adsorption of dibenzothiophene.
Publication date: 2011
Journal: Journal of Separation Science
Volume: 34
Issue: (14)
Page numbers: 1746-1753.
DOI: 10.1002/jssc.201100147
Abstract: Abstract: The novel surface imprinted polymer composites (MIP/K2Ti4O9) were prepared using dibenzothiophene (DBT) as the template, 4-vinylpyridine as the functional monomer and potassium tetratitanate whisker (K2Ti4O9) as the carrier. The synthetic product was characterized by Fourier transform infrared spectroscopy and scanning electron microscopy. Parameters influencing DBT adsorption such as contact time, temperature and DBT initial concentration were investigated. The adsorption kinetics were evaluated with the pseudo-first-order and pseudo-second-order models, and the adsorption isotherms were fitted by Langmuir and Freundlich models. Selectivity experiments showed that MIP/K2Ti4O9 exhibited excellent recognition capacity and binding affinity to DBT compared with the comparative substrates. MIP/K2Ti4O9 could also be easily regenerated and reused ten times with only about 20% loss of adsorption capacity
Template and target information: dibenzothiophene, DBT
Author keywords: adsorption, dibenzothiophene, Potassium tetratitanate whisker, Surface imprinted polymer composites
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