Abstract
This study presents epoxidizing podocarpus falcatus seed oil through epoxidation reaction by using synthesized solid sulfonated silica catalyst from locally available sugarcane bagasse ash. The prepared sulfonated solid acid silica catalyst was characterized using bulk density, porosity, surface area, thermogravimetric, powder X-ray diffractometer, and FT-IR (Fourier-transform infrared spectroscopy). Thus, synthesized sulfonated silica catalyst works successfully for epoxidation of podocarpus falcatus seed oil. The epoxidation reaction was analyzed by design expert software Box-Behnken with four factors three-level: reaction temperatures, the molar ratio of hydrogen peroxide to the podocarpus falcatus seed oil double bond, reaction times, and catalyst loading. From the experimental results, the maximum relative conversion of oxirane of 84.75% was obtained using a temperature of 70 °C, hydrogen to carbon carbon double bond molar ratio of 2.5:1, using catalyst 5 (% w/w), and at 4-h reaction time. The product of epoxidized podocarpus falcatus oil was characterized by identifying the functional group, and composition of podocarpus falcatus seed oil, in comparison to epoxidized podocarpus falcatus oil, using Fourier-transform infrared spectroscopy and proton nuclear magnetic resonance spectroscopy. The produced epoxidizing podocarpus falcatus seed oil can be substitutes for petrochemical resources because of its sustainable, renewable, and environment-friendly nature.
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12 January 2022
A Correction to this paper has been published: https://doi.org/10.1007/s13399-021-02273-4
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We would like to acknowledge the XRD and FT-IR platform at the Faculty of Material Science and Engineering, Jimma University, for support in the FT-IR spectroscopy.
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Yigezu Mekonnen is responsible for writing, reviewing, editing, supervision, and ensuring that the descriptions are accurate and agreed by all authors. Werku Aweke is responsible for investigation, Software Analysis and Methodology that the descriptions are agreed by all authors.
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The original online version of this article was revised: The PDF version of this originally published article was the uncorrected proof; it has now been replaced by the corrected version. In addition, the order that the authors appeared in the author list was incorrect.
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Teso, W.A., Bayisa, Y.M. Solid sulfonated silica acid catalyst for epoxidation of podocarpus falcatus seed oil. Biomass Conv. Bioref. (2021). https://doi.org/10.1007/s13399-021-02082-9
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DOI: https://doi.org/10.1007/s13399-021-02082-9