Influence of solvent on the morphology and photocatalytic properties of ZnS decorated CeO2 nanoparticles

Autor(es):Mostrar menos -

Raubach, Cristiane W. ^[1] ; Polastro, Lisanias ^[1] ; Ferrer, Mateus M. ^[1] ; Perrin, Andre ^[1] ; Perrin, Christiane ^[1] ; Albuquerque, Anderson R. ^[2] ; Buzolin, Prescila G. C. ^[2] ; Sambrano, Julio R. ^[2] ; de Santana, Yuri B. V. ^[3] ; Varela, Jose A. ^[3] ; Longo, Elson ^[3]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, INCTMN UFSCar, BR-13565905 Sao Carlos, SP - Brazil

^[2] Sao Paulo State Univ, UNESP, INCTMN, Grp Modelagem & Simulacao Mol, BR-17033360 Bauru, SP - Brazil

^[3] Univ Estadual Paulista, UNESP, INCTMN, BR-14801907 Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Applied Physics; v. 115, n. 21 JUN 7 2014.
• Citações Web of Science: 11

Resumo

Herein, we report a theoretical and experimental study on the photocatalytic activity of CeO2 ZnS, and ZnS decorated CeO2 nanoparticles prepared by a microwave-assisted solvothermal method. Theoretical models were established to analyze electron transitions primarily at the interface between CeO2 and ZnS. As observed, the particle morphology strongly influenced the photocatalytic degradation of organic dye Rhodamine B. A model was proposed to rationalize the photocatalytic behavior of the prepared decorated systems taking into account different extrinsic and intrinsic defect distributions, including order-disorder effects at interfacial and intra-facial regions, and vacancy concentration. (C) 2014 AIP Publishing LLC. (AU)

• Processo FAPESP: 10/19484-0 - Sulfeto de cálcio: propriedades morfológicas e ópticas
• Beneficiário: Cristiane Wienke Raubach Ratmann
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 12/17500-3 - Investigação dos mecanismos de crescimento e das propriedades fotoluminescentes de Ag2WO4
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisador Visitante - Internacional