BENTO, RODRIGO T.CORREA, OLANDIR V.PILLIS, MARINA F.2019-12-192019-12-192019BENTO, RODRIGO T.; CORREA, OLANDIR V.; PILLIS, MARINA F. Photocatalytic activity of undoped and sulfur-doped TiO2 films grown by MOCVD for water treatment under visible light. <b>Journal of the European Ceramic Society</b>, v. 39, n. 12, p. 3498-3504, 2019. DOI: <a href="https://dx.doi.org/10.1016/j.jeurceramsoc.2019.02.046">10.1016/j.jeurceramsoc.2019.02.046</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/30464.0955-2219http://repositorio.ipen.br/handle/123456789/30464Titanium dioxide ceramic coatings have been used as catalysts in green technologies for water treatment. However, without the presence of a dopant, its photocatalytic activity is limited to the ultraviolet radiation region. The photocatalytic activity and the structural characteristics of undoped and sulfur-doped TiO2 films grown at 400 °C by metallorganic chemical vapor deposition (MOCVD) were studied. The photocatalytic behavior of the films was evaluated by methyl orange dye degradation under visible light. The results suggested the substitution of Ti4+ cations by S6+ ions into TiO2 structure of the doped samples. SO4 2− groups were observed on the surface. S-TiO2 film exhibited good photocatalytic activity under visible light irradiation, and the luminous intensity strongly influences the photocatalytic behavior of the S-TiO2 films. The results supported the idea that the sulfur-doped TiO2 films grown by MOCVD may be promising catalysts for water treatment under sunlight or visible light bulbs.3498-3504openAccesstitanium oxidesphotocatalysisceramicssurface coatingsulfurdoped materialschemical vapor depositiondyeshydrogen sulfateswater treatmentArtigo de periódico123910.1016/j.jeurceramsoc.2019.02.0460000-0002-1423-871X0000-0002-1797-9652https://orcid.org/0000-0002-1423-871X98.21490.00