Esterification of free fat acids from waste cooking oil using BiVO4 photocatalysts under visible irradiation.
Herein, we report the FFA photoesterifcation of waste cooking oil (WCO) using a BiVO4 and visible irradiation. Despite undergoing treatments under diferent temperatures (120 °C and 150 °C), both synthesized samples presented high crystallinity and similar morphologies, corresponding to a mixture com...
| Autores: | , , , , , , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | Brasil |
| Recursos: | Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
| Repositorio: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
| Idioma: | inglés |
| OAI Identifier: | oai:www.alice.cnptia.embrapa.br:doc/1177312 |
| Acesso em linha: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1177312 https://doi.org/10.1007/s11144-025-02808-0 |
| Access Level: | acceso abierto |
| Palavra-chave: | Bismuth vanadate Waste cooking oil Free-fat acids Photoesterifcation Ethyl esters Fatty acid ethyl esters |
| Resumo: | Herein, we report the FFA photoesterifcation of waste cooking oil (WCO) using a BiVO4 and visible irradiation. Despite undergoing treatments under diferent temperatures (120 °C and 150 °C), both synthesized samples presented high crystallinity and similar morphologies, corresponding to a mixture composed of the scheelite structure of monoclinic and tetragonal phases of BiVO4. The FFA conversions with the photocatalysts were signifcantly higher than the non-catalytic reactions. The gas chromatography analysis shows that the products are composed of a mixture of ethyl esters and a low amount of fatty acid ethyl esters (FAEE). The results demonstrate that the photoesterifcation of FFA of non-edible vegetable oils can be driven by BiVO4 photocatalysts under visible irradiation, at regular temperature, reduced ethanol/oil molar ratio, and |
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