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Synthesis, Characterization, and Photocatalytic Properties of Sol-Gel Ce-TiO 2 Films.
- Source :
- Processes; Jun2024, Vol. 12 Issue 6, p1144, 13p
- Publication Year :
- 2024
-
Abstract
- In this study, nanostructured cerium-doped TiO<subscript>2</subscript> (Ce-TiO<subscript>2</subscript>) films with the addition of different amounts of cerium (0.00, 0.08, 0.40, 0.80, 2.40, and 4.10 wt.%) were deposited on a borosilicate glass substrate by the flow coating sol-gel process. After flow coating, the deposited films were dried at a temperature of 100 °C for 1 h, followed by calcination at a temperature of 450 °C for 2 h. For the characterization of sol-gel TiO<subscript>2</subscript> films, the following analytic techniques were used: X-ray diffraction (XRD), differential thermal analysis (DTA), thermal gravimetry (TG), differential scanning calorimetry (DSC), diffuse reflectance spectroscopy (DRS), and energy dispersive X-ray spectroscopy (EDS). Sol-gel-derived Ce-TiO<subscript>2</subscript> films were used for photocatalytic degradation of ciprofloxacin (CIP). The influence of the amount of Ce in TiO<subscript>2</subscript> films, the duration of the photocatalytic decomposition, and the irradiation type (UV-A and simulated solar light) on the CIP degradation were monitored. Kinetics parameters (reaction kinetics constants and the half-life) of the CIP degradation, as well as photocatalytic degradation efficiency, were determined. The best photocatalytic activity was achieved by the TiO<subscript>2</subscript> film doped with 0.08 wt.% Ce, under both UV-A and solar irradiation. The immobilized catalyst was successfully reused for three cycles under solar light simulator radiation, with changes in photocatalytic efficiency below 3%. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 22279717
- Volume :
- 12
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Processes
- Publication Type :
- Academic Journal
- Accession number :
- 178193856
- Full Text :
- https://doi.org/10.3390/pr12061144