Visible-light photocatalytic activity and recyclability of N-doped TiO2 films grown by MOCVD
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2020
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Nitrogen-doped TiO2 films were grown on borosilicate glass substrates at 400 °C by the metallorganic chemical vapor deposition
(MOCVD) for removing dye from water under visible light. The effect of N-doping on the structural, surface, and photocatalytic
properties of films was evaluated. X-ray photoelectron spectroscopy (XPS) analyses revealed that 1.56 and 2.44 at% of nitrogen
were incorporated into the films by varying the NH3 flux during the growth. Methyl orange dye degradation experiments showed
that the N-doped films presented photoactivity under visible light. The film containing 2.44 at% of nitrogen exhibited the best
photocatalytic behavior, with 55% of efficiency. Recyclability tests under visible light showed that the film efficiency dropped
gradually after each test. N-TiO2 films grown by MOCVD have the potential to be used in environmental applications by removing
pollutants using a green method under sunlight or even under internal illumination, although its reuse is limited.
Como referenciar
OLIVEIRA, E.C. de; BENTO, R.T.; CORREA, O.V.; PILLIS, M.F. Visible-light photocatalytic activity and recyclability of N-doped TiO2 films grown by MOCVD. Cerâmica, v. 66, n. 380, p. 451-459, 2020. DOI: 10.1590/0366-69132020663802957. Disponível em: http://repositorio.ipen.br/handle/123456789/31786. Acesso em: 18 Jan 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.