Environmental remediation properties of Bi2WO6 hierarchical nanostructure: A joint experimental and theoretical investigation

Autor(es)

Silva Chaves, Marisa de Jesus ^[1] ; Lima, Genesis de Oliveira ^[1] ; de Assis, Marcelo ^[2] ; Silva Mendonca, Caritas de Jesus ^[1] ; Pinatti, Ivo Mateus ^[2] ; Gouveia, Amanda Fernandes ^[3] ; Viana Rosa, Ieda Lucia ^[2] ; Longo, Elson ^[2] ; Pinheiro Almeida, Marcio Aurelio ^[4] ; Rodrigues dos Santos Franco, Teresa Cristina ^[5]

Afiliação do(s) autor(es)

^[1] Univ Fed Maranhao, Dept Quim, Campus Bacanga 1966, BR-65085580 Sao Luis, MA - Brazil

^[2] Univ Fed Sao Carlos, CDMF, POB 676, BR-13565905 Sao Carlos, SP - Brazil

^[3] Univ Estadual Piaui, Dept Quim, POB 381, BR-64002150 Teresina, PI - Brazil

^[4] Univ Fed Maranhao, Coordenacao Ciencia & Tecnol, Campus Bacanga 1966, BR-65085580 Sao Luis, MA - Brazil

^[5] Univ Fed Maranhao, Dept Tecnol Quim, Campus Bacanga 1966, BR-65085580 Sao Luis, MA - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Solid State Chemistry; v. 274, p. 270-279, JUN 2019.
• Citações Web of Science: 0

Resumo

In this work, different structures of Bi2WO6 (BWO) were synthesized using a template-assisted microwave process. The BWO samples were characterized using various methods such as X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Diffuse Reflectance Spectroscopy (DRS), and Raman Spectroscopy. The results show that the templates were able to promote changes in morphology and electronic properties. The photocatalytic experiment showed higher photocatalytic activity in RhB dye under UV light irradiation for the BWO sample, as compared with other samples. This behavior was attributed to better crystallinity and lower e(-)/h(-) pair recombination rates supported by XRD and photoluminescence experiments. (AU)

• 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: 13/23995-8 - Síntese do Tungstato de Prata dopado com o Eu3+ e estudo das suas propriedades ópticas, fotoluminescentes e fotocatalíticas
• Beneficiário: Ivo Mateus Pinatti
• Modalidade de apoio: Bolsas no Brasil - Doutorado