Salvato in:
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| Natura: | Recurso digital |
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| Pubblicazione: |
Zenodo
2025
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| Accesso online: | https://doi.org/10.3390/ijms262110593 |
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Sommario:
- <p>Photocatalytic pathogen inactivation is gaining increasing importance due to the rising<br>number of microbial species resistant to conventional antibacterial agents. Titanium dioxide<br>(TiO2)-based photocatalysts have emerged as a promising solution, being not only<br>potent antibacterial agents but also environmentally friendly and capable of simultaneously<br>degrading organic pollutants. This review summarizes recent advances in the antibacterial<br>performance of different TiO2 modifications, including commercial nanopowders,<br>nanoparticles with various morphologies, thin films, composites, and polymer-supported<br>nanostructures, all primarily activated under UV light. Given the limited ability of pristine<br>TiO2 to harvest solar radiation, we also highlight the most recent strategies for designing<br>visible-light-responsive TiO2, such as doping, incorporation of plasmonic metal nanoparticles,<br>formation of heterostructures, and interfacial charge transfer complexes. In addition,<br>we discuss the fundamental structural features of TiO2, the mechanisms of reactive oxygen<br>species (ROS) generation involved in bacterial inactivation, and kinetic models describing<br>antibacterial efficiency. These insights aim to advance the understanding and development<br>of eco-friendly, cost-effective, and sustainable photocatalytic disinfection technologies.</p>