Structural and Catalytic Properties of a Novel Vanadium Containing Solid Core Mesoporous Shell Silica Catalysts for Gas Phase Oxidation Reaction

Abstract

A novel Vanadium containing Solid core Mesoporous shell Silica catalyst was synthesized with different Si/V ratios by co-precipitation method under neutral conditions. The synthesized materials were characterized by various techniques and Gas phase Diphenyl methane oxidation reaction. The characterization reveals that a large amount of vanadium is mainly incorporated in isolated tetrahedral environment with terminal V=O bond. Among the various Vanadium containing solid core mesoporous shell silica catalysts, the Si/V=100 ratio exhibited maximum efficiency towards Diphenyl methane to Benzophenone gas phase reaction.

Liquid-phase oxidation of naphthalene with $$\hbox {H}_{2}\hbox {O}_{2}$$ H 2 O 2 in the presence of ordered mesoporous $$\hbox {V-}m\hbox {-Al}_{2}\hbox {O}_{3}$$ V- m -Al 2 O 3 catalysts

“…1,2 In the past decades, many techniques, such as biodegradation, photocatalysis and aerobic catalytic oxidation, have been exploited for its elimination. [3][4][5] Owing to lower efficiency and higher time consumption by the former two methods, the aerobic catalytic oxidation may be the most promising approach. However, catalytic oxidation in gas-phase is usually adopted and carbon dioxide is the final product.…”