Crisan, MariaMariaCrisanRaileanu, MalinaMalinaRaileanuBraileanu, AnaAnaBraileanuCrisan, DorelDorelCrisanDragan, NicolaeNicolaeDraganNitoi, InesInesNitoiIanculescu, AdelinaAdelinaIanculescuTeodorescu, ValentinValentinTeodorescu2017-05-032017-05-032011http://hdl.handle.net/123456789/9784th Balkan Conference on glass cience and technology & 16th Conference on glass and ceramics, Varna, BulgariaThe photocatalytic degradation of pollutants using Ti02 nanopowders Or TiO thin films is very attractive for applications to environmental protection, as a possible solution for water depollution. The impurity doping represents one of the typical approaches in orde to extend the spectral response of a wide band gap semiconductor to visible light. The aim of the present work was to establish the influence of the S-dopant on the photocatalytic properties of the TiO2 nanopowders. The relationship between the synthesis conditions and the properties of the un-doped and S-doped Ti02 materials, such as thermal stability, phase composition, crystallinity, morphology, and size of particles, and the influence of the dopant were investigated. The influence of S on TiOz2 crystallization was also studied (lattice parameters, crystallite sizes, internal strains). The photocatalytic activities of the prepared TiO2 based nanopowders were determined by testing them in the degradation of different chloride organic compounds from aqueous solutions. It was established that the presence of S dopant in the TiO2 powders has improved their photocatalytic activities.Sol-gelTiO2 powdersS-dopantPhotocatalytic activityEnvironmental protectionOther