Surface Engineering Effect on Optimizing Hydrogenation Timing of Green Hydrogenated Chitosan-Mediated CuO (H-Cht-CuO) for Cashew-kernel-oil Hydrogenation
Modern Chemistry
Volume 7, Issue 3, September 2019, Pages: 73-79
Received: Aug. 22, 2019; Accepted: Sep. 20, 2019; Published: Sep. 29, 2019
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Authors
Joshua Lelesi Konne, Department of Chemistry, Rivers State University, Port Harcourt, Nigeria
Hamilton Amachree Akens, Department of Chemistry, Federal University, Otuoke, Nigeria
Arinze Amauche Uwaezuoke, Department of Chemistry, Rivers State University, Port Harcourt, Nigeria
Achu Golden Chiamaka, Department of Chemistry, Rivers State University, Port Harcourt, Nigeria
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Abstract
The effect of polycrystallite surface engineering on the time required to fully hydrogenate green chitosan-mediated CuO to form hydrogenated chitosan-mediated CuO (H-Cht-CuO) as well as the catalytic properties of both CuO and H-Cht-CuO have been investigated. The prepared chitosan mediated CuO was obtained from the reaction of copper (II) sulphatepentahydrate with green alkali (aqueous extract of ripe plantain peel ash) via sol-gel technique (chitosan-gel mediated) and heated at 550°C for 6 h. The resultant sample was divided into two portions. The first was used as the control experiment (0 min) while the second was hydrogenated at varying times of 2 to 8 mins to form the H-Cht-CuO samples. A second CuO (control) without chitosan was also synthesized for structural and surface morphological comparisons with the chitosan-mediated using the XRD and SEM techniques, respectively. The XRD reflections showed differences in peak intensities with the chitosan-mediated having broader peaks while its SEM pores were 8.5 times larger than those of CuO (non chitosan-mediated). UV-Vis analysis of the samples showed that the 2 mins H-Cht-CuO sample had the maximum absorptivity while CuO (control-chitosan mediated) had the least. Both samples were used as catalysts in the hydrogenation of Cashew kernel oil. The GC-MS results showed that the Oleic acid component was reduced from 84.36% to 0.06% and 0%, Linoleic acid from 8.68% to 3.63% and 0% with increase in Stearic acid (saturated C18) from 4.88% to 34.97% and 84.76% by the CuO and H-Cht-CuO, respectively.
Keywords
Optimizing, Hydrogenation Timing, Chitosan-Mediated, Surface Engineering, Cashew-Kernel-Oil Hydrogenation
To cite this article
Joshua Lelesi Konne, Hamilton Amachree Akens, Arinze Amauche Uwaezuoke, Achu Golden Chiamaka, Surface Engineering Effect on Optimizing Hydrogenation Timing of Green Hydrogenated Chitosan-Mediated CuO (H-Cht-CuO) for Cashew-kernel-oil Hydrogenation, Modern Chemistry. Special Issue: Green Synthesis of Nanostructured Materials and Their Catalytic Applications. Vol. 7, No. 3, 2019, pp. 73-79. doi: 10.11648/j.mc.20190703.15
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Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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