| Popis: |
The first bentonite catalyst for oxidation of sulfides and oxidative coupling of thiols was fabricated. This novel catalyst was included natural bentonite, extracted cellulose from wheat wastes, and vanadium complex (Cell/Bent@V nanocomposite). It was characterized using SEM, TEM, ICP, AFM, XRD, XPS, and FT-IR. Further, oxidation of primary and secondary of alcohols were considered to show its catalytic potential for the various substrates. High yield, excellent conversion, and selectivity were observed for oxidation reactions catalyzed by Cell/Bent@V nanocomposite. Cel/Ben/V nanocomposite was shown the excellent stability and activity confirming by SEM, XRD, and FT-IR of recycled catalyst. Finally, the effect of ultrasonic irradiation instead of stirring on the oxidation reaction was evaluated. The high yields and conversions in the less times were observed. |
