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  1. Graphene oxide sheets involved in vertically aligned zinc oxide nanowires for visible light photoinactivation of bacteria
Graphene oxide sheets involved in vertically aligned zinc oxide nanowires for visible light photoinactivation of bacteria
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Graphene oxide sheets involved in vertically aligned zinc oxide nanowires for visible light photoinactivation of bacteria

Nourmohammadi, A.

  1. DOI:10.1016/j.jallcom.2014.05.195
  2. Main Entry: Nourmohammadi, A.
  3. Title:Graphene oxide sheets involved in vertically aligned zinc oxide nanowires for visible light photoinactivation of bacteria.
  4. Abstract:Vertically aligned ZnO nanowires (NWs) hybridized with reduced graphene oxide sheets (rGO) were applied in efficient visible light photoinactivation of bacteria. To incorporate graphene oxide (GO) sheets within the NWs two different methods of drop-casting and electrophoretic deposition (EPD) were utilized. The EPD method yielded effective penetration of the positively charged GO sheets into the NWs to form a spider net-like structure, whereas the drop-casting method resulted in only a surface coverage of the GO sheets on top of the NWs. The electrical connection between the EPD-incorporated sheets and the NWs was checked by monitoring the electron transfer from UV-assisted photoexcited ZnO NWs into the GO sheets, during photocatalytic reduction of the sheets. The obtained rGO/ZnO composites were applied in visible light photoinactivation of Escherichia coli bacteria. The ZnO NWs could inactivate only ∼58% of the bacteria, while both drop-casting and EPD-prepared GO/ZnO composites exhibited strong antibacterial activities (especially the EPD sample with ∼99.5% photoinactivation), under visible light irradiation for 1 h. In fact, the visible light photocatalytic activity of the EPD-prepared GO/ZnO NW composite was found ∼1.9 and 6.2 folds of the activity of the GO/ZnO composite prepared by drop-casting method and the bare ZnO NWs
  5. Notes:Sharif Repository
  6. Subject:Antibacterial nanomaterials.
  7. Subject:Electrophoretic deposition.
  8. Subject:Nanostructures.
  9. Subject:Photocatalysts.
  10. Subject:ZnO.
  11. Subject:Bacteria.
  12. Subject:Deposition.
  13. Subject:Drops.
  14. Subject:Electric connectors.
  15. Subject:Electrophoresis.
  16. Subject:Graphene.
  17. Subject:Nanowires.
  18. Subject:Anti-bacterial activity.
  19. Subject:Electrophoretic depositions.
  20. Subject:Escherichia coli bacteria.
  21. Subject:Photocatalytic reduction.
  22. Subject:Reduced graphene oxides.
  23. Subject:Visible light photocatalytic activity.
  24. Subject:Visible-light irradiation.
  25. Subject:Zinc oxide.
  26. Added Entry:Rahighi, R.
  27. Added Entry:Akhavan, O.
  28. Added Entry:Moshfegh, A.
  29. Added Entry:Sharif University of Technology.
  30. Source: Journal of Alloys and Compounds ; Vol. 612 , 2014 , pp. 380-385 ; ISSN: 09258388
  31. Web Site:http://www.sciencedirect.com/science/article/pii/S0925838814013024

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