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Reference type: Journal
Authors: Monier M, Ibrahim AA, Metwally MM, Badawy DS
Article Title: Surface ion-imprinted amino-functionalized cellulosic cotton fibers for selective extraction of Cu(II) ions.
Publication date: 2015
Journal: International Journal of Biological Macromolecules
Volume: 81
Page numbers: 736-746.
DOI: 10.1016/j.ijbiomac.2015.08.004
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0141813015005395

Abstract: Surface ion-imprinted amino-functionalized cellulosic fibers (Cu-ABZ) were manufactured for efficient selective adsorption of Cu2+ ions. The chemical modification steps had been characterized utilizing elemental analysis; Fourier transforms infrared (FTIR) along with wide angle X-ray diffraction (XRD) spectroscopy. Also, the morphological structure of the ion-imprinted and the non-imprinted (NI-ABZ) fibers were visualized and compared with that of the native cotton fibers using scanning electron microscope (SEM). In addition, the coordination mode by which the Cu2+ ions bonded to the active sites were examined by both FTIR and X-ray photo electron spectra (XPS). Both Cu-ABZ and NI-ABZ were implemented in batch experiments for optimizing the conditions by which the Cu2+ ions can be selectively removal from aqueous medium and pH 5 was the optimum for the metal ion extraction. Moreover, the kinetics and isotherm studies revealed that the adsorption data fitted with pseudo-second-order kinetic and Langmuir models with estimated maximum adsorption capacity 93.6 mg/g. Also, the reusability studies indicated that the prepared ion-imprinted adsorbent maintains more than 95% of its original activity after fifth generation cycle
Template and target information: copper ion, Cu(II)
Author keywords: Cotton, grafting, Nitrobenzaldehyde, copper ion, Ion-imprinting

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