Author
Ibrahim M.M. Kenawy
Other affiliations: United Arab Emirates University
Bio: Ibrahim M.M. Kenawy is an academic researcher from Mansoura University. The author has contributed to research in topics: Metal ions in aqueous solution & Adsorption. The author has an hindex of 21, co-authored 79 publications receiving 1549 citations. Previous affiliations of Ibrahim M.M. Kenawy include United Arab Emirates University.
Papers published on a yearly basis
Papers
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TL;DR: The adsorption kinetics followed the mechanism of the pseudo-second order equation for all systems studied, evidencing chemical sorption as the rate-limiting step of adsorptive mechanism and not involving a mass transfer in solution.
156 citations
TL;DR: In this article, a 5-formyl-3-(1′-carboxyphenylazo) salicylic acid-bonded silica gel (FCPASASG) chelating adsorbent was synthesized according to a very simple and rapid one step reaction between aminopropyl silica gels (APSG) and 5formyl 3-(1.carboxymylazo), salicyric acid and its adsorption characteristics were studied in details.
127 citations
TL;DR: The proposed guanyl-modified cellulose material has been successfully applied for the adsorption of the target metal ions from different real samples with satisfactory results.
122 citations
TL;DR: In this paper, the use of chemically modified chloromethylated polystyrene-PAN, for the separation of eleven heavy metal ions from aqueous solution is described.
Abstract: The use of chemically modified chloromethylated polystyrene-PAN, CMPS-PAN ion-exchanger for the separation of Au(III), Cd(II), Co(II), Cr(III), Cu(II), Fe(III), Mn(II), Ni(II), Pb(II), Pd(II) and Zn(II) from aqueous solution is described. After preconcentration, the heavy cations under investigation were determined using atomic absorption spectrometry (AAS). The distribution coefficient, Kd and the percentage concentration of the studied metal ions on the ion-exchanger at equilibrium, CM,eqm, % are evaluated as a function of pH, mass of ion-exchanger and shaking time. The calculated Kd values for the investigated cations are in the range of 25 - 7.9 × 105 cm3 g-1. The interfering effects of different foreign ions were studied. The chelates formed between CMPS-PAN ion-exchanger and the investigated metal ions were characterized by FT-IR spectrometry, potentiometry and thermal analysis. The present method is simple and rapidly applicable for the microdetermination of eleven heavy metal ions at ppb levels. Analytical applications for the preconcentration and separation using the modified CMPS-PAN ion-exchanger and the determination of the studied metal ions in tap, Nile, waste and sea water samples, human urine, milk (synthetic and natural) and some ores were carried out.
118 citations
TL;DR: The proposed methodology allows to verify an improvement in the water quality of Nile River probably attributed to high to moderate floods in the last few years and is accurate and not subject to random error.
94 citations
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785 citations
TL;DR: This review presents various electrochemical detection techniques for heavy metal ions those are user friendly, low cost, provides on-site and real time monitoring as compared to other spectroscopic and optical techniques.
660 citations
624 citations
TL;DR: In this article, the authors provide up-to-date information about the most important features of chitosan based adsorbents that may be helpful for synthesizing better adsorption property of modified chitosa and promoting its applications for heavy metal contaminate removal.
601 citations
TL;DR: This review outlines the preparation of MCCs as well as methods to characterize these materials using FTIR, XRD, TGA and other microscopy-based techniques to show their advantages as adsorbents in the treatment of polluted aqueous solutions.
579 citations