Synthesis and photocatalytic activity of titania monoliths prepared with controlled macro- and mesopore structure.

Herein, we report a one-pot synthesis of crack-free titania monoliths with hierarchical macro-mesoporosity and crystalline anatase walls. Bimodal macroporosity is created through the polymer-induced phase separation of poly(furfuryl alcohol). The cationic polymerization of furfuryl alcohol is performed in situ and subsequently the polymer becomes immiscible with the aqueous phase, which includes titanic acid.

Aerosol-assisted production of mesoporous titania microspheres with enhanced photocatalytic activity: the basis of an improved process.

An aerosol-based process was used to prepare mesoporous TiO(2) microspheres (MTM) with an average diameter in the range of 0.5-1 microm. The structural characteristics and photocatalytic properties of the synthesized materials were determined.

Controlled formation of highly organized mesoporous titania thin films: from mesostructured hybrids to mesoporous nanoanatase TiO2.

In this paper, we report the complete synthesis and characterization procedures to generate highly organized and oriented mesoporous titania thin films, using poly(ethylene oxide) (PEO)-based templates. Controlled conditions in the deposition, postsynthesis, and thermal treatment steps allow one to tailor the final mesostructure (2D hexagonal, p6m, or 3D cubic, Im3m). Various techniques were used to determine the time evolution of the mesostructure.

Phase transformation during cubic mesostructured silica film formation.

The structural evolution taking place during CTAB/TEOS based solvent evaporation-induced thin film formation has been followed by in-situ time-resolved SAXS; this shows that the final Pm3n cubic structure is formed via the formation of lamellar and hexagonal intermediate structures within the water rich evaporation regime.

Nanotectonic approach of the texturation of CeO2 based nanomaterials.

Original and homogeneous macrotextures shaped with coral-like, helical or macroporous sieves morphologies are obtained following a nanotectonic approach based on the template-directed assembly by poly-gamma-benzyl-L-glutamate (PBLG) of organically functionalised CeO2 crystalline nanoparticles.