Synthesis, Characterization, and Catalytic Applications of the Ti-SBA-16 Porous Material in the Selective and Green Isomerizations of Limonene and S-Carvone

This work presents studies on the activity of the Ti-SBA-16 (SBA—Santa Barbara Amorphous) catalyst in the isomerization of limonene and S-carvone. The Ti-SBA-16 catalyst was synthesized by a two-step method: first, the SBA-16 material was produced, and then it was impregnated with the titanium sourc...

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Bibliographic Details
Published in:Catalysts 2020-12, Vol.10 (12), p.1452
Main Authors: Retajczyk, Monika, Wróblewska, Agnieszka, Szymańska, Alicja, Miądlicki, Piotr, Koren, Zvi C., Michalkiewicz, Beata
Format: Article
Language:English
Subjects:
Antioxidants
Atherosclerosis
Catalysts
Chemical reactions
Chemical synthesis
Conversion
Cosmetics
Dispersion
Food products
Fourier transforms
Isomerization
limonene
Porous materials
S-carvone
Ti-SBA-16
Titanium
Tuberculosis
X-ray fluorescence
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Summary:This work presents studies on the activity of the Ti-SBA-16 (SBA—Santa Barbara Amorphous) catalyst in the isomerization of limonene and S-carvone. The Ti-SBA-16 catalyst was synthesized by a two-step method: first, the SBA-16 material was produced, and then it was impregnated with the titanium source. The Ti-SBA-16 catalyst was subjected to detailed characterizations by means of instrumental methods: XRD (X-ray Diffraction), UV-Vis (Ultraviolet–Visible) spectroscopy, FTIR (Fourier-Transform Infrared) spectroscopy, SEM (Scanning Electron Microscopy) with EDX (Energy Dispersive X-ray) spectroscopy, and EDXRF (Energy Dispersive X-ray Fluorescence). Both limonene and S-carvone underwent isomerization over the Ti-SBA-16 catalyst. In the isomerization of limonene, the main product was terpinolene, and its highest yield amounted to 39 mol% after 300 min at 170 °C with a catalyst content of 15 wt%. Under these conditions, the conversion of limonene reached 78 mol%. In contrast, the highest yield of carvacrol (65 mol%) was obtained with the catalyst content of 15 wt%, at 200 °C, and with the conversion of S-carvone reaching 79 mol%.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal10121452