Document Type : Original Paper

Author

• F. Farzaneh

Department of Chemistry, Alzahra University, Vanak, Tehran, Islamic Republic of Iran

Abstract

The nanoparticles of Ti-Si mixed oxides (NTSO) with Rutile structure were prepared by sol-gel method in a mixture of alcohol and water as solvent. The solid product was characterized by XRD, FTIR, SEM, TEM, UV, TGA and laser Raman spectroscopy. The catalytic activity of NTSO (5-10 nm) was investigated in the epoxidation of cis stilbene, trans stilbene, and norbornene by using oxidants such as tert-butylhydroperoxide (TBHP), molecular oxygen (O₂)/isobutyraldehyde (IBA) and hydrogen peroxide (H₂O₂). It was found that epoxides of trans-stilbene andnorbornenewereformedquantitativelywiththegreenH₂O₂oxidantduring12h.

Keywords

• Epoxidation
• Alkenes
• Ti-Si mixed oxides
• nanoparticles
• Heterogeneous catalysis