Deposition of TiO2 thin Films by Dip-Coating Technique from a Two-Phase Solution Method and Application to Photocatalysis

Autor(es)

Pedrini, Luiz F. K. ^[1] ; Escaliante, Lucas C. ^[1] ; Scalvi, Luis V. A. ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Fac Ciencias, Programa Posgrad Ciencia & Tecnol Mat, Bauru, SP - Brazil

^[2] Univ Estadual Paulista, Escola Ciencias, Dept Fis, Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 24, n. 1 2021.
• Citações Web of Science: 0

Resumo

A derivation of the sol-gel-dip-coating deposition technique is proposed, where the precursor solution exhibits two separated liquid phases, reaching an equilibrium state in a heterogeneous solution. Structural, optical and photocatalytic properties of TiO2 films grown from the proposed two phases method are shown and discussed, along with the properties of films deposited when the top phase present distinct lengths, which are observed through SEM images and optical transmittance spectra. The dominant crystalline phase is anatase for all the films prepared. Films are tested towards their efficiency for photocatalysis, using methylene blue as dye degradation agent. It has been found that films deposited through the two phase method are more efficient on the photocatalyitic degradation of methylene blue. (AU)

• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 19/00683-7 - Deposição de heteroestruturas de SnO2 e TiO2 por dip-coating por um método que envolve duas fases
• Beneficiário: Luiz Felipe Kaezmarek Pedrini
• Modalidade de apoio: Bolsas no Brasil - Mestrado