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http://dx.doi.org/10.5012/jkcs.2014.58.2.205

Formation Fe2O3 Nanowalls through Solvent-Assisted Hydrothermal Process and Their Application for Titan Yellow GR Dye Degradation  

Ahmed, Khalid Abdelazez Mohamed (Department of Chemistry, Faculty of Science and Technology, Al-Neelain University)
Publication Information
Journal of the Korean Chemical Society / v.58, no.2, 2014 , pp. 205-209 More about this Journal
Abstract
Hematite iron oxide (${\alpha}$-$Fe_2O_3$) nanowalls were fabricated on aluminum substrate by a facile solvent-assisted hydrothermal oxidation process. The XRD and EDS patterns indicate that the sample has a rhombohedral phase of hematite $Fe_2O_3$. FE-SEM, TEM, HR-TEM, SA-ED were employed to characterize the resulting materials. $N_2$ adsorption-desorption isotherms was used to study a BET surface area. Their capability of catalytic degradation of titan yellow GR azo dye with air oxygen in aqueous solution over $Fe_2O_3$ catalysts was studied. The result indicates that the as-prepared product has a high catalytic activity, because it has a larger surface area. Langmuir and Freundlich isotherms of adsorption dye on the catalysts surface were investigated and the decomposition of titan yellow GR follows pseudo-first order kinetic.
Keywords
Iron oxide; Synthesis; Nanowalls; Catalyst; Titan yellow GR;
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