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Reference type: Journal
Authors: Zhao CY, Dai JD, Zhou ZP, Dai XH, Zou YL, Yu P, Zou TB, Li CX, Yan YS
Article Title: One-pot method for obtaining hydrophilic tetracycline-imprinted particles via precipitation polymerization in ethanol.
Publication date: 2014
Journal: Journal of Applied Polymer Science
Volume: 131
Issue: (7)
Page numbers: Article 40071.
DOI: 10.1002/app.40071

Abstract: In this study, we used a green, one-pot method to synthesize hydrophilic molecularly imprinted polymers (MIPs) via the precipitation polymerization of hydrophilic monomers in ethanol. The as-prepared materials were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, dynamic light scattering, and water contact angle measurements (27.3 0.1). As compared to the imprinting and nonimprinting processes, tetracycline (TC), as a template molecule, had an important effect on the morphology of the MIPs, and the possible mechanism is discussed in detail. We also discuss the effects of the parameters on the binding performance as determined by batch adsorption experiments in pure water. The adsorption capacity increased with increasing concentration and temperature at an optimum pH of 5.0. The Langmuir isotherm fitted the data better, with a maximal concentration of 45.75 μmol/g at 318 K. The kinetic properties of the MIPs (within 3.0 h) toward TC were analyzed with pseudo-first-order and pseudo-second-order kinetic equations and the intraparticle diffusion model. The MIPs exhibited specific recognition toward TC, and other competitive antibiotics were used as references. All of the results indicate that the MIPs exhibited a large adsorption capacity and great specific recognition for TC. The high affinity to TC of the MIPs, with its fast and easy fabrication, provides them with potential applications in the selective separation of the TC antibiotics from an aqueous environment. 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40071
Template and target information: tetracycline, TC
Author keywords: adsorption, molecular recognition, properties and characterization, radical polymerization, separation techniques


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