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Título: Esterifcation of free fat acids from waste cooking oil using BiVO4 photocatalysts under visible irradiation.
Autor: CRISOSTOMO, C. A. B.
DAMACENO, F. B.
MESQUITA, J. P. de
TORRES, J. A.
RIBEIRO, C.
RIBEIRO, R. A.
LOPES, O. F.
AVANSI JR, W.
ALMEIDA, J. S.
MOURÃO, H. A. de J. L.
Afiliación: FEDERAL UNIVERSITY OF JEQUITINHONHA AND MUCURI VALLEYS (UFVJM); FEDERAL UNIVERSITY OF JEQUITINHONHA AND MUCURI VALLEYS (UFVJM); FEDERAL UNIVERSITY OF JEQUITINHONHA AND MUCURI VALLEYS (UFVJM); CAUE RIBEIRO DE OLIVEIRA, CNPDIA; FEDERAL INSTITUTE OF NORTHERN MINAS GERAIS (IFNMG); FEDERAL UNIVERSITY OF UBERLÂNDIA (UFU); FEDERAL UNIVERSITY OF SÃO CARLOS (UFSCAR); FEDERAL UNIVERSITY OF JEQUITINHONHA AND MUCURI VALLEYS (UFVJM); FEDERAL UNIVERSITY OF JEQUITINHONHA AND MUCURI VALLEYS (UFVJM).
Año: 2025
Referencia: Reaction Kinetics, Mechanisms and Catalysis, v. 138, 2025.
Páginas: 1453–1467
Descripción: 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
Palabras clave: Bismuth vanadate
Waste cooking oil
Free-fat acids
Photoesterifcation
Ethyl esters
Fatty acid ethyl esters
DOI: https://doi.org/10.1007/s11144-025-02808-0
Tipo de Material: Artigo de periódico
Acceso: openAccess
Aparece en las colecciones:Artigo em periódico indexado (CNPDIA)

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