alexa Synthesis and Characterization of Heterogeneous Catalysts and Comparison to Iron-ore
ISSN: 2157-7048

Journal of Chemical Engineering & Process Technology
Open Access

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Research Article

Synthesis and Characterization of Heterogeneous Catalysts and Comparison to Iron-ore

Khelifi S*, Ayari F, Hassan Chehimi DB and Trabelsi-Ayadi M

Laboratory of Applications of Chemistry to Resources and Natural Substances and to the Environment (LACReSNE), Faculty of Sciences of Bizerte, University of Carthage, Zarzouna 7021, Tunisia

*Corresponding Author:
Selma Khelifi
Laboratory of Applications of Chemistry to Resources and Natural Substances and to the Environment (LACReSNE)
University of Carthage, Faculty of Sciences of Bizerte
Zarzouna 7021, Tunisia
Tel: +21653111929
E-mail: [email protected]

Received date: November 18, 2016; Accepted date: November 30, 2016; Published date: December 04, 2016

Citation: Khelifi S, Ayari F, Hassan Chehimi DB, Trabelsi-Ayadi M (2016) Synthesis and Characterization of Heterogeneous Catalysts and Comparison to Iron-ore. J Chem Eng Process Technol 7:316. doi: 10.4172/2157-7048.1000316

Copyright: © 2016 Khelifi S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



The placement of metal oxide pillars between clay mineral layers modifies their physicochemical properties, including surface area, acidity, and catalytic activity. Aluminum is the most commonly used pillar cation, but the use of Fe offers a distinct opportunity to expand the range of catalytic behavior. The purpose of this study was to prepare Al-Fe-pillared smectite and to characterize the resulting materials. Al-Fe-pillared clay was synthesized from Tunisian clay precursors according to a common procedure: grinding, sieving, Na exchange, pillaring, drying and calcinations. Smectite suspension was mixed with different pillaring solutions containing Al and Fe oligomers with Fe/ (Al+Fe) percent ratios: 1; 5; 10 and 50%. Other types of material were investigated in this work; natural iron-ore was defined and characterized as heterogeneous catalysis. The structural and textural properties of synthesis and natural catalysis have been determined by X-ray diffraction, nitrogen adsorption-desorption isotherms, Transmission Electron Microscopy (MET), X-ray fluorescence, CEC and infrared spectroscopy.


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