Photocatalytic degradation of tetracycline-antibiotic under ultraviolet light irradiation using supported TiO2 hierarchical nanoarchitecture
Chrysanthemum- like rutile phase titanium oxide (TiO2) nanoflowers were synthesized on the surface of Raschig borosilicate rings (BRRs). The hierarchical nanoarchitecture was investigated using several physicochemical techniques: scanning electron microscopy (SEM), energy dispersion spectroscopy (ED...
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| Autores principales: | , , , , |
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| Formato: | Online |
| Lenguaje: | spa |
| Publicado: |
Universidad Autónoma de Baja California
2021
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| Acceso en línea: | https://recit.uabc.mx/index.php/revista/article/view/133 |
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| Sumario: | Chrysanthemum- like rutile phase titanium oxide (TiO2) nanoflowers were synthesized on the surface of Raschig borosilicate rings (BRRs). The hierarchical nanoarchitecture was investigated using several physicochemical techniques: scanning electron microscopy (SEM), energy dispersion spectroscopy (EDS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (IR), diffuse reflectance spectroscopy (DRS), zeta potential (ζ). TiO2-BRR were used as a packed column in a photocatalytic reactor, and their catalytic activity in the degradation of a bacteriostatic antibiotic: tetracycline (C22H24N2O8) was evaluated. The photocatalyst removed 91% of the emerging contaminant achieving an energy efficiency of 68% with an optimized loading of 75 TiO2- BRR and a pH of 4 at 25 ° C; without significant variation in at least three photodegradation cycles. This information can be used to develop supported TiO2 photocatalysts aimed at eliminating emerging contaminants, offering a viable alternative. |
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