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Photocatalytic antibacterial performanceof PVP-doped SnO2/TiO2 thin films coated on glass fibers |
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| รหัสดีโอไอ | |
| Creator | 1. Peerawas Kongsong 2. Lek Sikong 3. Mahamasuhaimi Masae 4. Witawat Singsang 5. Sutham Niyomwas 6. Vishnu Rachpech |
| Title | Photocatalytic antibacterial performanceof PVP-doped SnO2/TiO2 thin films coated on glass fibers |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2561 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 40 |
| Journal No. | 3 |
| Page no. | 659 |
| Keyword | PVP doped SnO2/TiO2, glass fiber, water disinfection, Escherichia coli, Staphylococcus aureus |
| URL Website | http://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | PVP (polyvinylpyrrolidone)-doped SnO2/TiO2 composite thin films and undoped films were prepared by sol-gel anddip-coating methods. The calcined films at 600 oC for 2 h were characterized by scanning electron microscopy, X-raydefractometer, UV-Vis spectroscopy, and X-ray photoelectron spectroscopy. Furthermore, the photocatalytic reaction on thedegradation of methylene blue dye solution was also investigated in order to observe the correlation between the results ofbacteria inactivation of the prepared films and that of photocatalytic activity on methylene blue degradation. The PVP-dopedSnO2/TiO2 composite thin films and undoped films were preliminarily studied against gram negative Escherichia coli and grampositive Staphylococcus aureus bacteria. It revealed that PVP-doped SnO2/TiO2 composite films resulted in shifting theabsorption wavelength towards narrowing the energy band gap, high crystallinity of anatase phase, and small crystallite size.Therefore, the 40PVP/SnO2/TiO2 composite thin film exhibited greater photocatalytic activity and water disinfection efficiencythan those of undoped films. |
