Disordered mesoporous V/TiO2 system for ambient oxidation of sulfides to sulfoxides

TitleDisordered mesoporous V/TiO2 system for ambient oxidation of sulfides to sulfoxides
Publication TypeJournal Article
Year of Publication2013
AuthorsNegi, SSingh, Sivaranjani, K, Singh, APal, Gopinath, CS
JournalApplied Catalysis A-General
Date PublishedFEB
KeywordsAmbient oxidation, Combustion synthesis, heterogeneous catalysis, Hydrogen peroxide, Mesoporous TiO2, Sulfoxidation, Sulfoxide

High sulfide conversion and predominant sulfoxide yield has been observed with 0.1% vanadium doped disordered mesoporous Ti1-xVxO2 material at ambient and sub ambient temperatures using environmentally green H2O2 oxidant. Ti1-xVxO2 materials were prepared by one-pot solution combustion method in less than 15 min and thoroughly characterized by X-ray diffraction, HRTEM, Raman spectra and other physicochemical techniques. Different sulfides, such as, phenylsulfide, methyl-p-tolylsulfide, ethylsulfide, thioanisole, were converted into the corresponding sulfoxide. Isolated V5+ incorporated in the TiO2 lattice is likely to be the active species for the sulfide oxidation reaction. Catalyst recycling studies indicates the robustness of the catalyst. (c) 2012 Elsevier B.V. All rights reserved.

Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)3.674
Divison category: 
Catalysis and Inorganic Chemistry