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...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | México |
| Institución: | UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA |
| Repositorio: | Revista de Ciencias Tecnológicas |
| Idioma: | español |
| OAI Identifier: | oai:ojs.recit.uabc.mx:article/133 |
| Acceso en línea: | https://recit.uabc.mx/index.php/revista/article/view/133 |
| Access Level: | acceso abierto |
| Palabra clave: | Fotocatálisis TiO2 Tetraciclina Radiación UV Reactor tipo Bach Photocatalysis Tetracycline UV Radiation Batch type reactor |
| 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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