Review on the titanium oxide for catalytic applications

Abstract

Titanium dioxide (TiO2) presents particular importance, due to its general properties in a wide range of fields, such as catalysis, photocatalysis and antibacterial agents and as nano-paint (self-cleaning). Physical and chemical characteristics of TiO2, particle size and shape, phases of crystalline TiO2 with band gaps that rutile TiO2 of 3.0 eV and anatase TiO2 of 3.2 eV, determine the photocatalytic performance of TiO2. This review presents the theoretical concepts of the structure properties of this oxide and the elaboration methods that make TiO2 the ideal candidate for catalytic applications.

New insights into the deterioration of TiO2 based oil paints: the effects of illumination conditions and surface interactions

“…For anatase, the ultra-band gap illumination is limited to near UV light (λ < 385 nm), whereas rutile has a tail that extends the response into visible light (λ < 410 nm) [9]. While it is widely reported that anatase has lower rates of recombination and hence, higher photo-reactivity than rutile, these differences may be diminished under certain conditions and both materials may generate radical products that promote degradation of the oil binder [10][11][12][13][14]. Furthermore, the behavior of semiconductor pigments such as TiO 2 is influenced by interactions with other components present in the complex matrix of a paint film, such as inorganic and organic compounds.…”