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Reference type: Journal
Authors: Monier M, Kenawy IM, Hashem MA
Article Title: Synthesis and characterization of selective thiourea modified Hg(II) ion-imprinted cellulosic cotton fibers.
Publication date: 2014
Journal: Carbohydrate Polymers
Volume: 106
Page numbers: 49-59.
DOI: 10.1016/j.carbpol.2014.01.074
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0144861714000836

Abstract: In the present study, Hg2+ ion-imprinted chelating fibers based on thiourea modified natural cellulosic cotton fibers (Hg-C-TU) were synthesized and characterized using some instrumental techniques such as elemental analysis, scanning electron microscopy (SEM), FTIR, wide angle X-ray and XPS spectroscopy. The modified Hg-C-TU fibers were employed for selective removal of Hg2+ from aqueous solution. Effect of some essential parameters such as pH, temperature, adsorption times and adsorbate concentration were examined to evaluate the optimum adsorption condition. The adsorption kinetics followed the second-order kinetic model indicating that the chemical adsorption is the rate limiting step. Also, the adsorption isotherm experiments showed the best fit with Langmuir model with maximum adsorption capacities 110.3 and 61.8 mg/g for both Hg-C-TU and NI-C-TU, respectively
Template and target information: mercury ion, Hg(II)
Author keywords: Cotton fibers, cellulose, Thiourea, Ion-imprinting


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