Esterification of free fat acids from waste cooking oil using BiVO4 photocatalysts under visible irradiation

被引：0
|
作者：
Crisostomo, Camilo Aurelio Brandao [1 ]
Damaceno, Fernanda Barbosa [1 ]
de Mesquita, Joao Paulo [1 ]
Torres, Juliana Arriel [2 ]
Ribeiro, Caue [2 ]
Ribeiro, Roberto Ananias [3 ]
Lopes, Osmando F. [4 ]
Avansi Jr, Waldir [5 ]
Almeida, Janio Santos [1 ]
Mourao, Henrique Aparecido de Jesus Loures [1 ,6 ]
机构：
[1] Fed Univ Jequitinhonha & Mucuri Valleys UFVJM, Chem Postgrad Program PPGQ, MGT 367 Highway Km 583, BR-39100000 Diamantina, MG, Brazil
[2] Embrapa Instrumentat Sao Carlos, 15 Novembro,1452 Ctr, BR-13560970 Sao Paulo, SP, Brazil
[3] Fed Inst Northern Minas Gerais IFNMG, MG 404 Highway,Km 02, BR-39560000 Salinas, MG, Brazil
[4] Fed Univ Uberlandia UFU, Inst Chem, Lab Photochem & Mat Sci, BR-38400902 Uberlandia, MG, Brazil
[5] Fed Univ Sao Carlos UFSCar, Dept Phys, BR-13565905 Sao Carlos, SP, Brazil
[6] Fed Univ Jequitinhonha & Mucuri Valleys UFVJM, Inst Sci & Technol, Rodovia MGT 367,Km 583, BR-39100000 Diamantina, MG, Brazil
来源：
REACTION KINETICS MECHANISMS AND CATALYSIS | 2025年
关键词：
Bismuth vanadate; Waste cooking oil; Free-fat acids; Photoesterification; Ethyl esters; Fatty acid ethyl esters; BIODIESEL PRODUCTION; PHOTOELECTROCHEMICAL PROPERTIES; HYDROGEN-PRODUCTION; THIN-FILMS; DEGRADATION; PERFORMANCE; PHOTODEGRADATION; NANOCOMPOSITES; PHOTOANODES; CATALYSTS;
D O I：
10.1007/s11144-025-02808-0
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
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页数：15
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