Geração de Filmes de Titânia meso-macroporosa  por Modelagem de Esferas de Látex

Weverton Martiniano Moreira; Giselly Correia Cavalcante; Johnnatan Duarte de Freitas; Jonas dos Santos Sousa; Alan John Duarte de Freitas; Djalma de Albuquerque Barros Filho

doi:10.17648/diversitas-journal-v6i1-1488

Geração de Filmes de Titânia meso-macroporosa por Modelagem de Esferas de Látex

Authors

Weverton Martiniano Moreira Instituto Federal de Alagoas https://orcid.org/0000-0002-5362-738X
Giselly Correia Cavalcante Instituto Federal de Alagoas https://orcid.org/0000-0003-0592-6104
Johnnatan Duarte de Freitas Instituto Federal de Alagoas https://orcid.org/0000-0002-6977-3322
Jonas dos Santos Sousa Instituto Federal de Alagoas http://orcid.org/0000-0003-0498-1152
Alan John Duarte de Freitas Instituto Federal de Alagoas https://orcid.org/0000-0001-9673-7338
Djalma de Albuquerque Barros Filho Instituto Federal de Alagoas https://orcid.org/0000-0001-7612-0816

DOI:

https://doi.org/10.17648/diversitas-journal-v6i1-1488

Abstract

ABSTRACT: This article deals with the synthesis and formation of mesoporous titania films by latex beads templating. The infiltration of latex template by titanium precursor solution resulted in compact films that generated an inverted pore network resulting from the latex removal as it was observed by Scanning Electron Microscopy (SEM) measurements. The goal of this work is to analyze the deposition of latex beads on glassy substrates and eventual infiltration by precursor solution of mesoporous titania. The final product was bulky films with porosity in the micrometric scale defined by latex beads. The synthesis of latex beads was carried out in the absence of N₂ and the titania precursor solution was obtained from the ternary system: HCl/P-123/1 Butanol. The characterization of films by SEM was carried out after the removal of latex template by calcination in a tubular oven. The appearance of films was compact for 30% V/V_o dispersion concentration and there was a well-defined pore network observed in the SEM characterization associated with the presence of latex beads that assembles by Solvent Controlled Evaporation (SCE) technique. SEM characterization showed that latex beads coated on glass substrates and formed a network structure that could be applied to functional devices like solar cells, catalizers and batteries. It is necessary to decrease the concentration of the dispersion to form films with homogeneous monolayers that become transparent to visible light.

KEYWORDS: Nanotechnology, semiconductor oxide, self-structured materials.

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Author Biography

Djalma de Albuquerque Barros Filho, Instituto Federal de Alagoas

Possui graduação em Física pelo Instituto de Física e Química de São Carlos da Universidade de São Paulo (1990), mestrado em Física pelo Instituto de Física e Química de São Carlos da Universidade de São Paulo (1992) e doutorado em Físico-Química pelo Instituto de Física e Química de São Carlos da Universidade de São Paulo (1997). Pós-Doutorado pela Universidade de Toronto em 1999 e Pós-Doutorado pela UNESP em 2001. Participou como pesquisador na Universidade Bandeirante de São Paulo como membro do corpo docente do Mestrado Profissional de Biomateriais da UNIBAN Brasil até 2012.Tem experiência na área de Física, com ênfase em Físico-Química, atuando principalmente nos seguintes temas: sol-gel, materiais óxidos, modelagem química, cristais fotônicos e fotoeletroquímica. Atualmente, é professor do Instituto Federal de Alagoas Campus Maceió com Dedicação Exclusiva atuando na orientação de bolsistas de iniciação científica e focado no desenvolvimento de modelagem de titânia meso-macroporosa a ser aplicada em biomateriais, células solares e dessalinização dos oceanos.

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Published

2021-01-30

How to Cite

Moreira, W. M., Cavalcante, G. C., Freitas, J. D. de, Sousa, J. dos S., Freitas, A. J. D. de, & Barros Filho, D. de A. (2021). Geração de Filmes de Titânia meso-macroporosa por Modelagem de Esferas de Látex. Diversitas Journal, 6(1), 836–847. https://doi.org/10.17648/diversitas-journal-v6i1-1488

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Issue

Vol. 6 No. 1 (2021): Práticas e reflexões sobre ensino, pesquisa e extensão

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