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Artículo

ZnO recovered from spent alkaline batteries as antimicrobial additive for waterborne paints

Lopez, Guillermo PabloIcon ; Gallegos, María VictoriaIcon ; Peluso, Miguel AndrésIcon ; Damonte, Laura CristinaIcon ; Sambeth, Jorge EnriqueIcon ; Bellotti, NataliaIcon
Fecha de publicación: 12/2022
Editorial: Springer
Revista: Emergent Materials
ISSN: 2522-5731
e-ISSN: 2522-574X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ingeniería de los Materiales

Resumen

Biocides are employed to prevent biodeterioration in waterborne paints. In the present study, we used zinc oxide nanoparticles (obtained from spent alkaline batteries) as biocide for indoor waterborne paint at 1.5% of the total solid content in paint. Two different zinc oxides synthesized from spent alkaline batteries, which showed photocatalyst activity, were employed as an antimicrobial agents. After leaching the anode of alkaline batteries, zinc was precipitated from the leachate liquor by introducing oxalic acid (O-ZnO) or sodium carbonate (C-ZnO). The antimicrobial properties of the prepared oxides were tested against Staphylococcus aureus (bacteria), Chaetomium globosum, and Aspergillus fumigatus (fungi) using agar well diffusion method. C-ZnO inhibited the growth of all the strains studied and presented enhanced activity than O-ZnO. The better performance as antimicrobial agent of C-ZnO compared to O-ZnO was attributed to its lower crystallite size, higher amount of oxygen monovacancies, and to its lower band gap energy. The oxide with the best performance in antimicrobial activity, C-ZnO, was employed for the formulation of waterborne acrylic paints. It was observed that 1.5% C-ZnO improved the antifungal properties and antibacterial properties compared to the control sample.
Palabras clave: ANTIMICROBIAL PAINT , BATTERY WASTE , FUNCTIONALIZED COATINGS , OXIDE SEMICONDUCTORS , POSITRON ANNIHILATION , STRUCTURAL PROPERTIES
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/205225
URL: https://link.springer.com/10.1007/s42247-022-00443-2
DOI: http://dx.doi.org/10.1007/s42247-022-00443-2
Colecciones
Articulos(CIDEPINT)
Articulos de CENTRO DE INV EN TECNOLOGIA DE PINTURAS (I)
Articulos(CINDECA)
Articulos de CENTRO DE INV EN CS.APLICADAS "DR.JORGE J.RONCO"
Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
Lopez, Guillermo Pablo; Gallegos, María Victoria; Peluso, Miguel Andrés; Damonte, Laura Cristina; Sambeth, Jorge Enrique; et al.; ZnO recovered from spent alkaline batteries as antimicrobial additive for waterborne paints; Springer; Emergent Materials; 6; 1; 12-2022; 147-158
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