Autor(es)

Crisostomo, Camilo Aurelio Brandao ; Damaceno, Fernanda Barbosa ; de Mesquita, Joao Paulo ; Torres, Juliana Arriel ; Ribeiro, Caue ; Ribeiro, Roberto Ananias ; Lopes, Osmando F. ; Avansi Jr, Waldir ; Almeida, Janio Santos ; Mourao, Henrique Aparecido de Jesus Loures

• Tipo de documento: Artigo Científico
• Fonte: Reaction Kinetics Mechanisms and Catalysis; v. N/A, p. 15-pg., 2025-02-19.

Resumo

Herein, we report the FFA photoesterification of waste cooking oil (WCO) using a BiVO4 and visible irradiation. Despite undergoing treatments under different temperatures (120 degrees C and 150 degrees 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 significantly 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 photoesterification 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 short times. (AU)

• Processo FAPESP: 18/01258-5 - Novos processos catalíticos e fotocatalíticos para a conversão direta de metano e CO2 em produtos
• Beneficiário: José Maria Correa Bueno
• Modalidade de apoio: Auxílio à Pesquisa - Temático