| Journal: | Journal of applied research and technology |
| Database: | PERIÓDICA |
| System number: | 000427629 |
| ISSN: | 1665-6423 |
| Authors: | Garay Rodríguez, Luis F1 Zermeño, Brenda2 López de la O, Karla Alejandra2 Leyva, Elisa2 Moctezuma, Edgar2 |
| Institutions: | 1Universidad Autónoma de Nuevo León, Facultad de Ingeniería Civil, San Nicolás de los Garza, Nuevo León. México 2Universidad Autónoma de San Luis Potosí, Facultad de Ciencias Químicas, San Luis Potosí. México |
| Year: | 2018 |
| Season: | Oct |
| Volumen: | 16 |
| Number: | 5 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The photocatalytic degradation of BPA aqueous solutions with commercial TiO2 (Evonik P25) was carried out in a home-made batch reactor illuminated with four UV lamps (λmax=365 nm) in order to determine the kinetic parameters of the reaction rate equation and to identify and quantify some of the most stable aromatic intermediate reaction products. Low concentration (20 ppm) BPA solutions were completely degraded and mineralized in less than three hours of reaction. Whereas, BPA aqueous solutions with concentration above 50 ppm are transformed in other chemical compounds in 6 hours of reaction and fully mineralized in 15 hours of reaction. Kinetic analysis of the experimental results of BPA concentration as a function of time indicated that this photocatalytic degradation process follows a LH-HW reaction rate law where the reaction order shift from zero order to first order as the reactant concentration is decreased. Analysis of the reaction samples by different analytical techniques indicated that BPA is mineralized via formation of hydroquinone, benzoquinone, benzene-triol, catechol, and phenol by two simultaneous reaction pathways |
| Disciplines: | Química |
| Keyword: | Ingeniería química, Bisfenol A, Degradación fotocatalítica, Parámetros cinéticos, Compuestos fenólicos |
| Keyword: | Chemical engineering, Photocatalytic degradation, Bisphenol A, Kinetic parameters, Phenolic compounds |
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