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

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 spen...

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Autores principales: López, Guillermo Pablo, Gallegos, María Victoria, Peluso, Miguel Andrés, Damonte, Laura Cristina, Sambeth, Jorge Enrique, Bellotti, Natalia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2022
Materias:
Química
oxide semiconductors
antimicrobial paint
positron annihilation
structural properties
battery waste
functionalized coatings
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/148104
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-148104
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
oxide semiconductors
antimicrobial paint
positron annihilation
structural properties
battery waste
functionalized coatings
spellingShingle Química
oxide semiconductors
antimicrobial paint
positron annihilation
structural properties
battery waste
functionalized coatings
López, Guillermo Pablo
Gallegos, María Victoria
Peluso, Miguel Andrés
Damonte, Laura Cristina
Sambeth, Jorge Enrique
Bellotti, Natalia
ZnO recovered from spent alkaline batteries as antimicrobial additive for waterborne paints
topic_facet Química
oxide semiconductors
antimicrobial paint
positron annihilation
structural properties
battery waste
functionalized coatings
description 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.
format Articulo
Articulo
author López, Guillermo Pablo
Gallegos, María Victoria
Peluso, Miguel Andrés
Damonte, Laura Cristina
Sambeth, Jorge Enrique
Bellotti, Natalia
author_facet López, Guillermo Pablo
Gallegos, María Victoria
Peluso, Miguel Andrés
Damonte, Laura Cristina
Sambeth, Jorge Enrique
Bellotti, Natalia
author_sort López, Guillermo Pablo
title ZnO recovered from spent alkaline batteries as antimicrobial additive for waterborne paints
title_short ZnO recovered from spent alkaline batteries as antimicrobial additive for waterborne paints
title_full ZnO recovered from spent alkaline batteries as antimicrobial additive for waterborne paints
title_fullStr ZnO recovered from spent alkaline batteries as antimicrobial additive for waterborne paints
title_full_unstemmed ZnO recovered from spent alkaline batteries as antimicrobial additive for waterborne paints
title_sort zno recovered from spent alkaline batteries as antimicrobial additive for waterborne paints
publishDate 2022
url http://sedici.unlp.edu.ar/handle/10915/148104
work_keys_str_mv AT lopezguillermopablo znorecoveredfromspentalkalinebatteriesasantimicrobialadditiveforwaterbornepaints
AT gallegosmariavictoria znorecoveredfromspentalkalinebatteriesasantimicrobialadditiveforwaterbornepaints
AT pelusomiguelandres znorecoveredfromspentalkalinebatteriesasantimicrobialadditiveforwaterbornepaints
AT damontelauracristina znorecoveredfromspentalkalinebatteriesasantimicrobialadditiveforwaterbornepaints
AT sambethjorgeenrique znorecoveredfromspentalkalinebatteriesasantimicrobialadditiveforwaterbornepaints
AT bellottinatalia znorecoveredfromspentalkalinebatteriesasantimicrobialadditiveforwaterbornepaints
bdutipo_str Repositorios
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