The Titanium and Mixed Titanium Carbon Nanoparticles Supported on Silica for Cyclohexene Conversion and of Dyes Removal

Abstract

The two samples of  nanoparticles  sulfated titania over silica ST/SiO₂ and sulfated titania active carbon over silica  STAC /SiO₂ were  synthesized by sol- gel method and characterized by X-ray diffraction XRD , BET , thermal analysis and TEM spectroscopy . The TEM demonstrated that the average particle size of two samples were found to be in the range of (15-50 nm).The ST/SiO₂ and STAC/SiO₂ have been used as an effective catalyst for cyclohexene disproportionation which STAC/SiO₂ catalyst  show much higher selectivity for benzene formation at temperature ranging from 200-280°C. Series of kinetic studies had been conducted for  the removal of acid and basic dyes. The STAC/SiO₂ has a considerable potential as an adsorbent for the removal of acidic dye (eosin) than the basic dye (saffranin).

Keywords: ST/SiO₂ and STAC/SiO₂ nanocatalyst, Sol- Gel method ,cyclohexene and dyes.