TiO2 anatase-based membranes with hierarchical porosity and photocatalytic properties.

Taking benefit of previously obtained results, stable complex organic-inorganic hybrid suspensions are successfully prepared by mixing a polystyrene latex aqueous suspension, a titania hydrosol and a nonionic triblock copolymer. These suspensions can be then deposited as thin films on dense or porous substrates. Solvent evaporation induces the formation of spherical micelles by self-assembly of the amphiphilic molecules during the drying of the films.