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Facile Synthesis to Porous TiO 2 Nanostructures at Low Temperature for Efficient Visible-Light Degradation of Tetracycline.
- Source :
-
Nanomaterials (2079-4991) . Jun2024, Vol. 14 Issue 11, p943. 18p. - Publication Year :
- 2024
-
Abstract
- In this study, nanoporous TiO2 with hierarchical micro/nanostructures was synthesized on a large scale by a facile one-step solvothermal method at a low temperature. A series of characterizations was performed and carried out on the as-prepared photocatalysts, which were applied to the degradation of the antibiotic tetracycline (TC). The results demonstrated that nanoporous TiO2 obtained at a solvothermal temperature of 100 °C had a spherical morphology with high crystallinity and a relatively large specific surface area, composed of a large number of nanospheres. The nanoporous TiO2 with hierarchical micro/nanostructures exhibited excellent photocatalytic degradation activity for TC under simulated sunlight. The degradation rate was close to 100% after 30 min of UV light irradiation, and reached 79% only after 60 min of visible light irradiation, which was much better than the photodegradation performance of commercial TiO2 (only 29%). Moreover, the possible intermediates formed during the photocatalytic degradation of TC were explored by the density functional theory calculations and HPLC-MS spectra. Furthermore, two possible degradation routes were proposed, which provided experimental and theoretical support for the photocatalytic degradation of TC. In this study, we provide a new approach for the hierarchical micro/nanostructure of nanoporous TiO2, which can be applied in industrial manufacturing fields. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LOW temperatures
*TITANIUM dioxide
*PHOTODEGRADATION
*TETRACYCLINE
*TETRACYCLINES
Subjects
Details
- Language :
- English
- ISSN :
- 20794991
- Volume :
- 14
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Nanomaterials (2079-4991)
- Publication Type :
- Academic Journal
- Accession number :
- 177863581
- Full Text :
- https://doi.org/10.3390/nano14110943