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Photocatalytic and antibacterial activity of TiO2and Au/TiO2nanosystems
Open accessAbstract
This work focuses on the photocatalytic performances and antibacterial activity of TiO 2 and Au/TiO 2 nanosystems. While the former are obtained by a sol–gel route, the latter are synthesized by an innovative hybrid RF-sputtering/sol–gel approach, followed by ex situ annealing in air up to 600 °C. Important information on nanoparticle size, shape and distribution is obtained by the combined use of glancing incidence x-ray diffraction (GIXRD) and field emission-scanning electron microscopy (FE-SEM). Subsequently, the photocatalytic performances of the obtained nanosystems in the decomposition of the azo-dye Plasmocorinth B and their antibacterial activity in the elimination of Bacillus subtilis are illustrated and discussed in comparison with films obtained from standard Degussa P25 powders. The obtained results show a significant dependence of the functional performances on the system's compositional, structural and morphological properties. In particular, the dispersion of gold nanoparticles on the TiO 2 matrix has a beneficial influence on the azo-dye photodegradation, whereas the antimicrobial activity of Au/TiO 2 films is retarded with respect to pure TiO 2 .
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Cites
Photocatalysis on TiO2 Surfaces: Principles, Mechanisms, and Selected Results
Linsebigler, A. L., Lu, G., & Yates, J. T. (1995) · Chemical Reviews · doi:10.1021/cr00035a013 · Cited by 11,575
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Balasubramaniam, B., Prateek, Ranjan, S., Saraf, M., Kar, P., Singh, S. P., Thakur, V. K., Singh, A., & Gupta, R. K. (2021) · ACS Pharmacology & Translational Science · doi:10.1021/acsptsci.0c00174 · Cited by 285
Metadata
- Authors
- Armelao, L., Barreca, D., Bottaro, G., Gasparotto, A., Maccato, C., Maragno, C., Tondello, E., Štangar, U. L., Bergant, M., & Mahne, D.
- Venue
- Nanotechnology
- Publisher
- IOP Publishing
- Published
- 2007-08-22
- Volume
- 18
- Issue
- 37
- Pages
- 375709
- ISSN
- 0957-4484 (ISSN-L)
- 1361-6528
- OpenAlex
- W2016652709
- Cited by
- 220
- References
- 1
- FWCI
- 4.10
- Type
- journal article
- Language
- en
- Open access
- bronze
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- The paper
- Armelao, L., Barreca, D., Bottaro, G., Gasparotto, A., Maccato, C., Maragno, C., Tondello, E., Štangar, U. L., Bergant, M., & Mahne, D. (2007). Photocatalytic and antibacterial activity of TiO2and Au/TiO2nanosystems. Nanotechnology. https://doi.org/10.1088/0957-4484/18/37/375709
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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