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Reference type: Journal
Authors: Sánchez-Polo M, Velo-Gala I, López-Peñalver JJ, Rivera-Utrilla J
Article Title: Molecular imprinted polymer to remove tetracycline from aqueous solutions.
Publication date: 2015
Journal: Microporous And Mesoporous Materials
Volume: 203
Page numbers: 32-40.
DOI: 10.1016/j.micromeso.2014.10.022
Alternative URL: https://www.researchgate.net/publication/267573315_Molecular_imprinted_polymer_to_remove_tetracycline_from_aqueous_solutions

Abstract: The objective of this study was to synthesize a molecularly imprinted polymer (MIP) for tetracycline (TC), prepared in the form of well-defined polymer microspheres, and its corresponding non-imprinted polymer (NIP). TC adsorption on these polymers was investigated, determining: (i) the interactions responsible for the adsorption, (ii) the chemical and textural characteristics of the polymers, and (iii) the role of the solvent in the process. The two polymers were characterized texturally by different techniques: (i) the surface area was larger for the MIP than for the NIP, whereas the micropore volume was considerably lower for the MIP; (ii) XPS analysis showed very high and similar surface oxygen percentages in both materials. The adsorbent properties of the materials were assessed by determining the TC adsorption isotherms: the Freundlich model indicates the high homogeneity of the MIP and Shimizu model shows the total number of binding sites was 8.7 μmol g-1 for the MIP vs. 0.17 μmol g-1 for the NIP. Analysis of the influence of pH and ionic strength revealed that adsorbent-adsorbate electrostatic interactions play a key role in TC adsorption on the MIP. The adsorption capacity of the MIP was also found to decrease with temperature, showing it to be an exothermic process
Template and target information: tetracycline, TC
Author keywords: molecularly imprinted polymer, Tetracycline, selective adsorption, water treatment

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