Characterization of surface species on mesoporous TiO2 prepared by TiC oxidation

Surface species responsible for low pH values of zero charge point and high sorption capacity of mesoporous TiO2 powder obtained by TiC oxidation with nitric acid were studied by FTIR, EPR and XPS methods. It was found that during the titania synthesis the oxide surface was modified by nitrate-nitrite, carboxylic groups, NOx and ·С≡ radicals which determined adsorption properties of the TiO2 powder.publishe

Sol-gel template synthesis of mesoporous titania powder with photocatalytic activity under visible light

The high oxidizing power of photogenerated holes in titania coupled with the chemical stability of TiO2 material allow to use it for many applications that exploit solar energy. (...)publishe

Effect of structure and surface state of nanocrystalline tin dioxide on its gas sensing properties

Effect of particle size, concentration of structural defects and the presence of sulfite and sulfate groups on the response of thick-film SnO2 sensors to CH4 and CO were revealed. Particle size and the presence of SO-groups were found to be main parameters determining the sensitivity of SnO2-based sensors to CH4, while structural defects of SnO2 layers are essential for CO detection

TiO 2 /epoxy composites as effective anticorrosion coatings for steel

Chemistry of nanostructured system

TiO 2 /epoxy composites as effective anticorrosion coatings for steel

Chemistry of nanostructured system