| Texto completo | |
| Autor(es): |
Goncalves, Roger
;
Guardiano, Matheus G.
;
Lucca, Juliana
;
Pereira, Ernesto C.
;
Mascaro, Lucia H.
;
Gonzaga, Isabelle M. D.
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | CHEMICAL ENGINEERING JOURNAL; v. 516, p. 10-pg., 2025-07-15. |
| Resumo | |
Water treatment is a fundamental issue for public health and environmental well-being, so we study several materials and technologies for water treatment since there are many refractory compounds. Despite its low electrocatalytic activity, BiVO4 has been explored as an abundant and low-cost option. Therefore, it is necessary to seek alternative methods to overcome this disadvantage. A promising alternative is doping with metals since it can improve the electrocatalytic properties of the material and make it attractive for several applications. This work aimed to synthesize BiVO4 by electrodeposition and dope with Ru to evaluate the influence of this metal on the catalytic properties. Subsequently, it was applied to remove sulfonamides (sulfadiazine, SDZ, and sulfamethoxazole, SMX) to evaluate the degradation mechanism and feasibility. The Ru-BiVO4 film decreased the resistance to charge transfer compared to the pure electrode. Furthermore, the Ru-BiVO4 film was applied to the electrooxidation of SDZ and SMX antibiotics, and a complete removal of both antibiotics was obtained in 10 min, indicating that the insertion of 1 % Ru in BiVO4 significantly improved its electrocatalytic activity. Finally, theoretical studies were performed to confirm the results obtained in the laboratory. Thus, it was possible to conclude that the Ru-BiVO4 film presented excellent activity, showing that the material is highly promising for large-scale application. (AU) | |
| Processo FAPESP: | 21/03592-2 - Modelagem e simulação de dispositivos eletroquímicos por elementos finitos |
| Beneficiário: | Evaldo Batista Carneiro Neto |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais |
| Beneficiário: | Elson Longo da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 23/11548-9 - Geração de energia a partir da oxidação (foto)eletrocatalítica de diferentes contaminantes presentes em biomassas |
| Beneficiário: | Matheus Gabriel Guardiano dos Santos |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 17/11986-5 - Geração e Armazenamento de Novas Energias: trazendo desenvolvimento tecnológico para o país |
| Beneficiário: | Ana Flávia Nogueira |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Centros de Pesquisa Aplicada |