Morphological evolution and visible light-induced degradation of Rhodamine 6G by nanocrystalline bismuth tungstate prepared using a template-based approach

Nenhuma Miniatura disponível
Silva, Raissa Mendes
Batista Barbosa, Diego Augusto
De Jesus Silva Mendonça, Caritas
De Oliveira Lima, José Renato
Silva, Fernando Carvalho
Longo, Elson [UNESP]
MacIel, Adeilton Pereira
De Araujo Paschoal, Carlos William
Almeida, Marcio Aurélio Pinheiro
Título da Revista
ISSN da Revista
Título de Volume
The cleaning of water contaminated with organic dyes is a crucial problem nowadays. The search for good catalysts is intense, and bismuth tungstates have attracted a lot of attention because of their catalytic properties which are related to their crystal structure and morphology. In this study, we show that Bi2WO6 (BWO) crystals synthesized by the surfactant-assisted hydrothermal method create a different morphology than non-assisted crystals. With the assistance of the PVP surfactant, even the BWO crystalline structure could change, crystallizing into a high-symmetry metastable phase. These changes in morphology imply a decrease in BWO catalytic activity, which shows that insightful control of BWO synthesis is necessary to improve the BWO properties.
Bi2WO6, Photodegradation, Surfactants
Como citar
Journal of Physics and Chemistry of Solids, v. 96-97, p. 83-91.