Use of natural rubber membranes as support for powder TiO2 and Ag/TiO2 photocatalysts
Jusinei M. Stropa, Aline S. Herrero, Silvio C. Oliveira, Alberto A. Cavalheiro, Renato F. Dantas, Samuel L. Oliveira, Amilcar Machulek Jr., Lincoln C. S. Oliveira
ARTIGO
Inglês
Agradecimentos: The authors wish to thank the Brazilian funding agencies Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), and Fundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de...
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Agradecimentos: The authors wish to thank the Brazilian funding agencies Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), and Fundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de Mato Grosso do Sul (Fundect) for their financial support. A. M. Jr. is associated with the Universidade de São Paulo Research Consortium for Photochemical Technology (NAP-Photo Tech) and the Instituto Nacional de Ciência e Tecnologia de Estudos do Meio Ambiente (INCT-EMA)
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Abstract: The purpose of this study was to synthesize TiO2-polymer composites able to act as photocatalyst membranes. TiO2 catalysts were prepared using the sol-gel method to contain 0.0, 0.5, 1.0, and 2.0 wt.% of embedded Ag particles, subsequently incorporated into natural rubber latex at a weight...
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Abstract: The purpose of this study was to synthesize TiO2-polymer composites able to act as photocatalyst membranes. TiO2 catalysts were prepared using the sol-gel method to contain 0.0, 0.5, 1.0, and 2.0 wt.% of embedded Ag particles, subsequently incorporated into natural rubber latex at a weight fraction of 15%. Samples of these ceramic powders were suspended in a latex emulsion (natural rubber), cast in Petri dishes and slowly dried in an oven. The resulting materials were evaluated by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray, diffuse reflectance spectroscopy, differential scanning calorimetry, thermogravimetry, and photocatalytic assaying using methylene blue as an organic pollutant reference. All composite membranes exhibited good photoactivity conferred by TiO2 powder, with 98% dye fading after 300 min of ultraviolet irradiation
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FUNDAÇÃO DE APOIO AO DESENVOLVIMENTO DO ENSINO, CIÊNCIA E TECNOLOGIA DO ESTADO DE MATO GROSSO DO SUL - FUNDECT
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
Aberto
Use of natural rubber membranes as support for powder TiO2 and Ag/TiO2 photocatalysts
Jusinei M. Stropa, Aline S. Herrero, Silvio C. Oliveira, Alberto A. Cavalheiro, Renato F. Dantas, Samuel L. Oliveira, Amilcar Machulek Jr., Lincoln C. S. Oliveira
Use of natural rubber membranes as support for powder TiO2 and Ag/TiO2 photocatalysts
Jusinei M. Stropa, Aline S. Herrero, Silvio C. Oliveira, Alberto A. Cavalheiro, Renato F. Dantas, Samuel L. Oliveira, Amilcar Machulek Jr., Lincoln C. S. Oliveira
Fontes
Journal of the Brazilian Chemical Society (Fonte avulsa) |