Synthesis and characterization of MFe2O4 sulfur nanoadsorbents |
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Authors: | T. Zaki D. Saed D. Aman S. A. Younis Y. M. Moustafa |
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Affiliation: | 1. Catalysis Department, Petroleum Refining Division, Egyptian Petroleum Research Institute, P.B. 11727, Nasr, Cairo, Egypt 2. Analysis and Evaluation Division, Egyptian Petroleum Research Institute, P.B. 11727, Nasr, Cairo, Egypt
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Abstract: | Nanoparticles of ferrites (Fe3O4, NiFe2O4, CuFe2O4, and MnFe2O4) were prepared by a reverse (water/oil) microemulsion method. The microemulsion system consisted of cetyltrimethylammonium bromide, 1-butanol, cyclohexane, and a metal salt solution. The procedure was carried out using aqueous ammonia as the coprecipitating agent. Nanosized particles were characterized by thermal analysis, X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, and pyridine adsorption. The NiFe2O4 sample exhibited narrow mesoporous pore size distribution and high surface area ≈233 m2/g. It achieved good adsorption activity towards the dibenzothiophene (DBT) compound (166.3 μmol/g of DBT adsorbent). The structural properties obtained were very interesting for potential applications in the desulfurization process in petroleum refining. |
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