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.
- electron transfer
Mills, A., Peiro, A. M., Doyle, G. T., & Durrant, J. R. (2005). Freestanding polymer-metal oxide nanocomposite films for light-driven oxygen scavenging. Advanced Materials, 17(19), 2365-2368. https://doi.org/10.1002/adma.200500397