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Keywords:

  • Electron transfer;
  • Nanocomposites;
  • Photocatalysis;
  • Titania
Thumbnail image of graphical abstract

Freestanding films containing nanocrystalline TiO2 and a suitable electron donor embedded in a cellulose matrix deoxygenate a closed environment (see Figure) upon UV illumination as a result of the photocatalytic properties of TiO2. This opens up the potential use of semiconductor photocatalysis in active packaging to achieve light-driven deoxygenation of closed environments.