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Harnessing the photocatalytic potential of bismuth ferrite-activated carbon nanocomposite (BFO-AC) for Staphylococcus aureus decontamination under visible light.
Daub, Nur Atiqah; Aziz, Farhana; Mhamad, Shakhawan Ahmad; Chee, Dayang Norafizan Awang; Jaafar, Juhana; Yusof, Norhaniza; Salleh, Wan Norharyati Wan; Ismail, Ahmad Fauzi.
Afiliación
  • Daub NA; Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia.
  • Aziz F; Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia. farhana@petroleum.utm.my.
  • Mhamad SA; Chemistry Department, College of Education, University of Sulaimany, 46001, Sulaimani, Kurdistan, Iraq.
  • Chee DNA; Faculty Resource Science and Technology, Universiti Malaysia Sarawak, 94300, Kota Samarahan, Sarawak, Malaysia.
  • Jaafar J; Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia.
  • Yusof N; Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia.
  • Salleh WNW; Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia.
  • Ismail AF; Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia.
Environ Sci Pollut Res Int ; 31(11): 16629-16641, 2024 Mar.
Article en En | MEDLINE | ID: mdl-38321283
ABSTRACT
In response to the escalating global issue of microbial contamination, this study introduces a breakthrough photocatalyst bismuth ferrite-activated carbon (BFO-AC) for visible light-driven disinfection, specifically targeting the Gram-positive bacterium Staphylococcus aureus (S. aureus). Employing an ultrasonication method, we synthesized various BFO-AC ratios and subjected them to comprehensive characterization. Remarkably, the bismuth ferrite-activated carbon 11.5 ratio (BA 11.5) nanocomposite exhibited the narrowest band gap of 1.86 eV. Notably, BA (11.5) demonstrated an exceptional BET surface area of 862.99 m2/g, a remarkable improvement compared to pristine BFO with only 27.61 m2/g. Further investigation through FE-SEM unveiled the presence of BFO nanoparticles on the activated carbon surface. Crucially, the photocatalytic efficacy of BA (11.5) towards S. aureus reached its zenith, achieving complete inactivation in just 60 min. TEM analysis revealed severe damage and rupture of bacterial cells, affirming the potent disinfection capabilities of BA (11.5). This exceptional disinfection efficiency underscores the promising potential of BA (11.5) for the treatment of contaminated water sources. Importantly, our results underscore the enhanced photocatalytic performance with an increased content of activated carbon, suggesting a promising avenue for more effective microorganism inactivation.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Staphylococcus aureus / Compuestos Férricos / Nanocompuestos Idioma: En Revista: Environ Sci Pollut Res Int Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Malasia Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Staphylococcus aureus / Compuestos Férricos / Nanocompuestos Idioma: En Revista: Environ Sci Pollut Res Int Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Malasia Pais de publicación: Alemania