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Title: Solid phase extraction of Fe(III) utilizing alumina modified with phenolic compounds produced via microwave approach
Authors: Ahmed, Salwa A
Keywords: Solid phase extraction;Extraction;Iron;Alumina;Modified alumina;Phenols;Microwave technique;Chelates;Adsorption
Issue Date: 19-Mar-2015
Abstract: This study describes the use of microwave approach to improve the adsorptive efficiency of alumina surface toward Fe(III). Due to the strong tendency of Fe(III) for reacting with phenolic compounds, the improvement process had been achieved via modification of alumina surface with 2-amino phenol and 1-naphthol by the microwave technique. The two new adsorbents are characterized by Fourier transform-infrared spectroscopy, scanning electron microscope and X-ray diffraction. The adsorption properties of the adsorbents for Fe(III) are studied, optimized and evaluated under various experimental conditions. The results show higher ferric ions extraction (≥98.2%) by the two new adsorbents as compared to native alumina. The experimental results are well fitted by Langmuir and Freundlich isotherms and pseudo-second order kinetics. High recovery values of Fe(III) spiked natural water samples are obtained (≥95.0%) by column and batch techniques.
Page(s): 324-332
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.54A(03) [March 2015]

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