Your browser doesn't support javascript.
loading
Microstructure-dependent particulate filtration using multifunctional metallic nanowire foams.
Malloy, James; Marlowe, Erin; Jensen, Christopher J; Liu, Isaac S; Hulse, Thomas; Murray, Anne F; Bryan, Daniel; Denes, Thomas G; Gilbert, Dustin A; Yin, Gen; Liu, Kai.
Afiliación
  • Malloy J; Department of Physics, Georgetown University, Washington, DC 20057, USA. kai.liu@georgetown.edu.
  • Marlowe E; Department of Physics, Georgetown University, Washington, DC 20057, USA. kai.liu@georgetown.edu.
  • Jensen CJ; Department of Physics, Georgetown University, Washington, DC 20057, USA. kai.liu@georgetown.edu.
  • Liu IS; Department of Physics, Georgetown University, Washington, DC 20057, USA. kai.liu@georgetown.edu.
  • Hulse T; Department of Computer Science, Vanderbilt University, Nashville, TN 37235, USA.
  • Murray AF; Department of Physics, Georgetown University, Washington, DC 20057, USA. kai.liu@georgetown.edu.
  • Bryan D; Department of Physics, University of Louisville, Louisville, KY 40292, USA.
  • Denes TG; Department of Food Science, University of Tennessee, Knoxville, TN, 37996, USA.
  • Gilbert DA; Department of Food Science, University of Tennessee, Knoxville, TN, 37996, USA.
  • Yin G; Department of Food Science, University of Tennessee, Knoxville, TN, 37996, USA.
  • Liu K; Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996, USA.
Nanoscale ; 16(32): 15094-15103, 2024 Aug 15.
Article en En | MEDLINE | ID: mdl-39076072
ABSTRACT
The COVID-19 pandemic has shown the urgent need for the development of efficient, durable, reusable and recyclable filtration media for the deep-submicron size range. Here we demonstrate a multifunctional filtration platform using porous metallic nanowire foams that are efficient, robust, antimicrobial, and reusable, with the potential to further guard against multiple hazards. We have investigated the foam microstructures, detailing how the growth parameters influence the overall surface area and characteristic feature size, as well as the effects of the microstructures on the filtration performance. Nanogranules deposited on the nanowires during electrodeposition are found to greatly increase the surface area, up to 20 m2 g-1. Surprisingly, in the high surface area regime, the overall surface area gained from the nanogranules has little correlation with the improvement in capture efficiency. However, nanowire density and diameter play a significant role in the capture efficiency of PM0.3 particles, as do the surface roughness of the nanowire fibers and their characteristic feature sizes. Antimicrobial tests on the Cu foams show a >99.9995% inactivation efficiency after contacting the foams for 30 seconds. These results demonstrate promising directions to achieve a highly efficient multifunctional filtration platform with optimized microstructures.
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanoscale Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanoscale Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido