Photocatalytic activity of undoped and sulfur-doped TiO2 films grown by MOCVD for water treatment under visible light
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Data
2019
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Autores IPEN
MARINA FUSER PILLIS
OLANDIR VERCINO CORREA
RODRIGO TEIXEIRA BENTO
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Journal of the European Ceramic Society
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Resumo
Titanium 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.
Como referenciar
BENTO, 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. Journal of the European Ceramic Society, v. 39, n. 12, p. 3498-3504, 2019. DOI: 10.1016/j.jeurceramsoc.2019.02.046. Disponível em: http://repositorio.ipen.br/handle/123456789/30464. Acesso em: 19 Mar 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.