Preparation of mesoporous titanosilicate with isolated Ti active centers for cyclohexene oxidation

TitlePreparation of mesoporous titanosilicate with isolated Ti active centers for cyclohexene oxidation
Publication TypeJournal Article
Year of Publication2015
AuthorsGupta, S, Vinod, CP, Jagadeesan, D
JournalRSC Advances
Volume5
Issue112
Pagination92371-92377
Date PublishedOCT
ISSN2046-2069
Abstract

We report the preparation of mesoporous titanosilicate with active Ti centres using CTAB as the structure directing agent and ethylenediamine as the complexing agent (TSC-ED). The finalmaterial contained isolated Ti4+ centres substituting Si4+ in the mesoporous silica framework. The crucial role played by ethylenediamine in complexing with Ti4+ during the sol-gel process and preventing the phase segregation of TiO2 was studied systematically. The textural parameters, structural order, morphology, nature and co-ordination of Ti species were analyzed using various techniques such as X-ray diffraction (XRD), UV-vis diffused reflectance spectroscopy (UV-vis DRS), UV resonance Raman spectroscopy, Fourier transformed Infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM), transition electron microscopy (TEM), and X-ray photoelectron spectroscopy. Finally, the catalysts were tested for catalytic activity in the oxidation of cyclohexene using various oxidants.

DOI10.1039/c5ra18044a
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)3.289
Divison category: 
Catalysis and Inorganic Chemistry
Physical and Materials Chemistry