Commercial titania in photocatalytic discoloration of textile industry dye residues - DOI: 10.4025/actascitechnol.v28i1.1199
Textile effluents characteristically contain colored compounds resulting from dyes unfixed to fibers during the dyeing process that cause serious environmental problems. An alternative process to prevent environmental contamination by these dyes is to oxidize them through photocatalysis in the prese...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | Brasil |
| Institución: | Universidade Estadual de Maringá (UEM) |
| Repositorio: | Acta scientiarum. Technology (Online) |
| Idioma: | portugués |
| OAI Identifier: | oai:periodicos.uem.br/ojs:article/1199 |
| Acceso en línea: | http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1199 |
| Access Level: | acceso abierto |
| Palabra clave: | titânia comercial fotocatálise corante reativo laranja-122 1.06.00.00-0 Química |
| Sumario: | Textile effluents characteristically contain colored compounds resulting from dyes unfixed to fibers during the dyeing process that cause serious environmental problems. An alternative process to prevent environmental contamination by these dyes is to oxidize them through photocatalysis in the presence of semiconducting oxides such as TiO2. In this sense, commercial TiO2 has been used as a catalyst in the photocatalytic study of discoloration of textile dye C.I. reactive orange-122 aqueous solutions. The photocatalytic reactions were carried in a thermostatized glass reactor and irradiated with a 15-W lamp. It was attained 100% dye discoloration in 120 min of reaction. This result indicates the efficiency of the TiO2 photocatalysis method in the discoloration of the studied dye |
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