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- Title
Self-Cleaning Surfaces with Superhydrophobicity of Ag–TiO<sub>2</sub> Nanofilms on the Floor Ceramic Tiles.
- Authors
Golshan, V.; Mirjalili, F.; Fakharpour, M.
- Abstract
The goal of this study was the surface modification of industrial floor ceramic tiles by sol-gel dip coating method to improve the antibacterial and hydrophobicity activity of floor tiles. TiO2 and Ag–TiO2 nanofilms were prepared on floor tile. Ag–TiO2 and TiO2 films with different AgNO3 and TiO2 content were characterized by scanning electron microscopy X-ray diffraction, energy-dispersive X-ray spectroscopy and wettability to determine the topologies, microstructures, chemical compositions and cleanability, respectively. The results showed that, the wettability was significantly improved by increasing silver content comping with pure TiO2. The antimicrobial effect of the synthesized nanofilm was carried out against Gram-negative and Gram-positive bacteria (S. aureus ATCC 6538 and E. coli ATCC 25922) respectively. The synthesized Ag–TiO2 thin film showed enhanced bactericidal activities compared to the neat TiO2 nano film both under visible light. Antibacterial properties increased with increasing of AgNO3 from 0.1 to 0.2 wt % and the amount of S. aureus ATCC 6538 and E. coli ATCC 259 were reduced by 99 and 95%, individually. With comparing of all samples, it could be observed that, the percentage of reduction of S. aureus ATCC 6538 was higher than that of E. coli ATCC 259.
- Subjects
FLOOR tiles; CERAMIC tiles; TILE flooring; CERAMICS; NANOFILMS; ESCHERICHIA coli; SUPERHYDROPHOBIC surfaces
- Publication
Glass Physics & Chemistry, 2022, Vol 48, Issue 1, p35
- ISSN
1087-6596
- Publication type
Article
- DOI
10.1134/S1087659622010059