Photocatalysis

The photocatalytic removal of model humic and fulvic acids of different origins (terrestrial and aquatic) was investigated using TiO2 Degussa P-25 as the photocatalyst. The results were presented comparatively based on pseudofirst-order and the Langmuir–Hinshelwood kinetic models. The reaction rates

The photocatalytic degradation of an azo dye derivative, chrysoidine Y (1), was investigated in aqueous suspensions of titanium dioxide and zinc oxide by monitoring the change in substrate concentration employing UV spectroscopic analysis and decrease in total organic carbon content as a function of

Fine particles of photocatalytic anatase TiO2 prepared through hydrolysis of titanium tetraisopropoxide were coated by carbon. A reduced phase, Ti4O7, was formed through interaction between TiO2 and the coating carbon. EXAFS analysis on this Ti4O7 phase showed an intermediate Ti–Ti distance between

The application of photocatalysis in the treatment of organic micropollutants in wastewater is an interesting alternative and is the object of a great interest over the last years by many researchers. The stage of adsorption of the micropollutant on the photocatalyst, mainly the titanium oxide anata

This experimental work studies photocatalytic degradation of phenol. The semiconductors used were zinc oxide (ZnO) and three commercial titanium oxides (TiO2) (Dégussa P25, TiO2-A1 and TiO2-A2). The rate of removal was greater for Dégussa P25 and ZnO. To understand the difference between photocataly