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Reference type: Journal
Authors: Li SF, Feng K, Yang L, Sun CY
Article Title: Study on the preparation and adsorption of the cesium ion imprinted polymer based on surface imprinting technique.
Publication date: 2017
Journal: Journal of Functional Materials
Volume: 48
Issue: (7)
Page numbers: 7062-7068.
Alternative URL: http://caod.oriprobe.com/articles/53018315/Study_on_the_preparation_and_adsorption_of_the_ces.htm

Abstract: A Cs(I) ion-imprinted polymer was prepared using cesium ion as the template, chitosan (CTS) as functional monomer, and modifying the surface of mesoporous silica SBA-15 by amino, glutaraldehyde via surface imprinting. The prepared polymer was characterized through Fourier-transform infrared, energy dispersive spectrometry, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N2 adsorption- desorption. The results showed the synthesized polymer possessed a highly ordered mesoporous structure. The adsorption capacity of the imprinted polymer for cesium ion was tested in batch experiments. The results showed that at pH=5-6, the adsorption equilibrium could be reached in 1hour and the maximum static adsorption capacities of the imprinted polymer was 36.19 mg/g higher than the non-imprinted polymer (NIP) at 25 C. The adsorption behavior of Cs(I) onto Cs(I)-IIP belonged to the pseudo-second-order kinetic model. The Langmuir model was well fitted with the data. The selectivity coefficients of the polymer for Cs(I)/Li(I), Cs(I)/Na(I), Cs(I)/K(I), Cs(I)/Rb(I), and Cs(I)/Sr(II) were 1.50, 2.00, 2.22, 1.32, 4.00, respectively.And the adsorption capacity did not significantly decrease after five adsorption-desorption cycle. Therefore, the polymer is stable and reusable.
Template and target information: cesium ion, Cs(I)
Author keywords: Ion-imprinted polymer, Surface imprinting technique, SBA-15, Cs(I), adsorption

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