Photoelectrocatalytical degradation of basic blue 41 dye using nanoporous semiconductor of Ti/TiO2
The present work investigates the photoelectrocatalytical degradation Basic Blue 41 (BB 41) largely applied to dye synthetic fibers, using a semiconductor Ti/TiO2as photoanode. 100% of degradation of 8.33 10-5mol L-1dye in 0.1 mol L-1Na2SO4, pH 2 was obtained under current density of 0.40 mA cm-2and...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | portugués |
| OAI Identifier: | oai:repositorio.unesp.br:11449/229690 |
| Acceso en línea: | http://dx.doi.org/10.26850/1678-4618EQJ.V39.4.2009.P27-36 http://hdl.handle.net/11449/229690 |
| Access Level: | acceso abierto |
| Palabra clave: | Basic blue 41 Dye treatment Photocatalysis Photoelectricatalysis Ti/TiO2 |
| Sumario: | The present work investigates the photoelectrocatalytical degradation Basic Blue 41 (BB 41) largely applied to dye synthetic fibers, using a semiconductor Ti/TiO2as photoanode. 100% of degradation of 8.33 10-5mol L-1dye in 0.1 mol L-1Na2SO4, pH 2 was obtained under current density of 0.40 mA cm-2and irradiation UV after 60 min of treatment and 80% of total organic carbon removal. The oxidation follows pseudo-first order reaction with initial rate constant of -0, 040 mim-1and a current efficiency of 51%. The results are superior the conventional photocatalysis in the same conditions without the polarization of the photoanode that takes to 65% of mineralization under initial rate constant -0, 024 min-1 |
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