Vanadato de bismuto sintetizado por combustão em solução na presença de diferentes combustíveis: síntese, caracterização e estudo da atividade fotocatalítica
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Data
2014
Autores
Serafim, Jéssica Aparecida
Afonso, Renata
Lucilha, Adriana Campano
Oliveira, Lucas Agostinho De
Silva, Paulo Rogério Catarini Da
Silva, Marcelo Rodrigues Da [UNESP]
Sartori, Elen Romão
Dall'antonia, Luiz Henrique
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Química
Resumo
In this manuscript, a BiVO4 semiconductor was synthesized by solution combustion synthesis using different fuels (Alanine, Glycine and Urea). Also, the Tween® 80 surfactant was added during synthesis. BiVO4 was characterized by XRD, SEM and diffuse reflectance spectroscopy. Photocatalytic activity was evaluated by the discoloration of methylene blue at 664 nm under UV-visible light irradiation. According to XRD, the monoclinic phase of BiVO4 was obtained for the samples. The smallest particle size and highest k obs value were observed for the BiVO4/alanine sample, which promoted greater demethylation of methylene blue.
Descrição
Palavras-chave
BiVO4, photocatalysis, semiconductor
Como citar
Química Nova. Sociedade Brasileira de Química, v. 37, n. 7, p. 1158-1164, 2014.