Oxidation of Cyclohexane to Cylohexanol and Cyclohexanone Over H4[α-SiW12O40]/TiO2 Catalyst
ABSTRACT: Oxidation of
cyclohexane to cyclohexanol and cyclohexanone was carried out using H4[-SiW12O40]/TiO2 as catalyst. In the first experiment, catalyst
H4[-SiW12O40]/TiO2 was synthesized and
characterized using FTIR spectroscopy and X-Ray analysis. In the second
experiment, catalyst H4[-SiW12O40]/TiO2 was applied for conversion
of cyclohexane. The conversion of cyclohexane was monitored using GC and GCMS.
The results showed that H4[α-SiW12O40]/TiO2
was successfully synthesized using 1 g of H4[-SiW12O40] and 0.5 g of
TiO2. The FTIR spectrum showed vibration of H4[-SiW12O40]
appeared at 771-979 cm-1 and TiO2 at 520-680 cm-1. The XRD powder
pattern analysis indicated that crystallinity of catalyst still remained after
impregnation to form H4[α-SiW12O40]/TiO2. The H4[α-SiW12O40]/TiO2 catalyst was used for oxidation of cyclohexane in
heterogeneous system under mild condition at 2 h, 70 °C, 0.038 g
catalyst, and 3 mL hydrogen peroxide to give cyclohexanone as major product.
Author: Aldes Lesbani,
Fatmawati, Risfidian Mohadi, Najma Annuria Fithri, and Dedi Rohendi
Journal Code: jpkimiagg160080
