Preparation and characterization of vernolic acid methyl ester functionalized ordered mesoporous materials
| العنوان: | Preparation and characterization of vernolic acid methyl ester functionalized ordered mesoporous materials |
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| المؤلفون: | Chebude, Yonas, Gonfa , Gutta, Díaz , Isabel |
| المصدر: | Bulletin of the Chemical Society of Ethiopia; Vol. 37 No. 3 (2023); 689-702 |
| بيانات النشر: | African Journals Online (AJOL), 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Ordered mesoporous materials, Vernolic acid methyl ester, Vernonia oil, General Chemistry, Functionalization, Catalysis |
| الوصف: | Vernonia oil is a naturally epoxidized triglyceride oil extracted from the seed of Vernonia galamensis, a native plant in East Africa. After hydrolysis to vernolic acid (VA) and derivatization, vernolic acid methyl ester (VAME) is synthesized and used to functionalize ordered mesoporous materials (OMM). Al-MCM-41 with Si/Al ratio of 15, pure silica SBA-15 and periodic mesoporous organosilica (PMO) are employed as supports exploring the different surface properties. Following optimization of the VAME/OMM ratios, selected samples, i.e. those with 13% VAME, were impregnated with AgNO3 in NaBH4 to obtain Ag-nanoparticles. The final AgVAME-OMM potential catalysts were characterized by transmission electron microscopy, observing an efficient loading of Ag nanoparticles in pure silica SBA-15 with VAME with 500 m2 specific surface area and 6 nm pore size. KEY WORDS: Vernolic acid methyl ester, Vernonia oil, Functionalization, Ordered mesoporous materials, Catalysis Bull. Chem. Soc. Ethiop. 2023, 37(3), 689-702. DOI: https://dx.doi.org/10.4314/bcse.v37i3.12 |
| وصف الملف: | application/pdf |
| تدمد: | 1726-801X 1011-3924 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4321c537dc92636ef541315416def353 https://doi.org/10.4314/bcse.v37i3.12 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....4321c537dc92636ef541315416def353 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1726801X 10113924 |
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