Antifungal and Photocatalytic Activity of Smart Paint Containing Porous Microspheres of TiO2

• Autor(a) principal: Amorim,Suélen Maria de
• Data de Publicação: 2019
• Outros Autores: Sapatieri,Joice Cristine, Moritz,Denise Esteves, Domenico,Michele Di, Laqua,Letícia Alves da Costa, Moura-Nickel,Camilla Daniela, Aragão,Gláucia Maria Falcão, Moreira,Regina de Fátima Peralta Muniz
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Materials research (São Carlos. Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000600219
• topic: Active paint; fungicide; photoactivity; titanium dioxide; Monascus ruber

In this study, porous microspheres of TiO2 (µTiO2) were synthesized, characterized and incorporated into an acrylic paint formulation to obtain a photocatalytically active paint. In a novel approach, the antifungal properties of the µTiO2 paint were evaluated using Monascus ruber as the representative microorganism and compared to those of a photocatalyst-free paint. The photocatalytic activity of paint films was determined by methylene blue (MB) degradation under real conditions of application. High photocatalytic and antifungal activity was observed, with the microorganism culture showing the formation of growth inhibition halos, typical of materials that produce biocides that diffuse into the culture medium.