A new and efficient route using inexpensive reagents such as fumed silica and tetrapropylammonium bromide is proposed for the synthesis of titanium silicalite-1. High crystalline titanium silicalite-1 was obtained in alkaline medium, using sodium hydroxide as HO ion source required for the crystallization process. Hydrolysis of titanium source with formation of insoluble oxide species was prevented by titanium complexation with before structuring

The adsorption of organic ionic dyes on different pore size engineered silica materials with potential application for industrial wastewater treatment has been investigated using Fourier transform laser microprobe mass spectrometry (FT-LMMS) and time-of-flight secondary ion mass spectrometry (TOF-S-SIMS). The complementary use of the two methods with different information depth allowed data on the subsurface distribution and pore penetration of the

A post-synthesis deposition of titania nanoparticles in the pores of SBA-15 results in highly ordered hexagonal templated materials with anatase plugs for photocatalytic applications.

The growth of titania nanoparticles within the mesopores of SBA-15 has been controlled by a post-synthesis deposition using the acid-catalyzed sol–gel method (ACSG). The crystal size, the location and the crystalline phase of the titania nanoparticles can be tuned by a careful adjustment of the preparation conditions. The influence of the initial titania amount, the pH and the temperature on the characteristics of titania-SBA-15 catalyst has been

Ti-SBA-15 mesoporous molecular sieves were prepared following an in situ method. Titania was therefore added during the synthesis of SBA-15. The influence of the silica source, the titania source, the synthesis temperature and the ageing temperature are investigated. These influences are discussed towards structural features, porous characteristics and catalytic performance of the combined titania-silica materials. The catalysts were characterized