Active sites and active oxygen species for photocatalytic epoxidation of propene by molecular oxygen over TiO (sub 2)-SiO (sub 2) binary oxides

Article Abstract:

TiO (sub 2)-SiO (sub 2) binary oxides of low Ti content promoted photocatalytic epoxidation of propene by molecular oxygen. By catalytic runs and UV spectra, it was revealed that the isolated tetrahedral Ti species on the TiO (sub 2)-SiO (sub 2) samples are active for the photoepoxidation of proene, while the aggregated titanium oxide species are active mainly for the side reactions.

All Other Basic Inorganic Chemical Manufacturing, Cyclic Crude and Intermediate Manufacturing, Propylene, Silicon & Inorganic Compounds, Titanium compounds, Silicon compounds

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Synergistic active sites on SiO2-Al2O3-TiO2 photocatalysts for direct methane coupling

Article Abstract:

Photocatalytic systems have the potential to promote difficult reactions and are examined in both oxidative and nonoxidative systems for methane conversion. The results suggest that the pair sites consisting of the dispersed AlO4 and TiO4 species are responsible for a high activity of the SiO2-Al2O3-TiO2 photocatalyst in this reaction.

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Catalysts, Chemical preparations, not elsewhere classified, Methane, Chemistry, Physical and theoretical, Physical chemistry, Chemical reactions

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