Taki, Malaa M. and Mahdi, Rahman I. and Al-Keisy, Amar and Alsultan, Mohammed and Al-Bahnam, Nabil Janan and Abd Majid, Wan Haliza and Swiegers, Gerhard F. (2022) Solar-Light-Driven Ag9 (SiO4)2 NO3 for efficient photocatalytic bactericidal performance. Journal of Composites Science, 6 (4). ISSN 2504-477X, DOI https://doi.org/10.3390/jcs6040108.
Full text not available from this repository.Abstract
Photocatalytic materials are being investigated as effective bactericides due to their superior ability to inactivate a broad range of dangerous microbes. In this study, the following two types of bacteria were employed for bactericidal purposes: Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus). The shape, crystal structure, element percentage, and optical properties of Ag9 (SiO4)2 NO3 were examined after it was successfully synthesized by a standard mixing and grinding processing route. Bactericidal efficiency was recorded at 100 by the following two types of light sources: solar and simulated light, with initial photocatalyst concentration of 2 µg/mL, and 97 and 95 of bactericidal activity in ultra-low photocatalyst concentration of 0.2 µg/mL by solar and simulated light, respectively, after 10 min. The survival rate was studied for 6 min, resulting in 99.8 inhibition at the photocatalyst dose of 2 µg/mL. The mechanism of bactericidal efficiency was found to be that the photocatalyst has high oxidation potential in the valence band. Consequently, holes play a significant part in bactericidal efficiency. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
| Item Type: | Article |
|---|---|
| Funders: | None |
| Uncontrolled Keywords: | Ag9 (SiO4)2 NO3; Bactericidal efficiency; Photocatalysis; solar light; Survival rate |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 08 Nov 2023 01:56 |
| Last Modified: | 08 Nov 2023 01:56 |
| URI: | http://eprints.um.edu.my/id/eprint/43407 |
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