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Preparation, photocatalytic properties and mechanism of Fe or N-doped Ag/ZnO nanocomposites

Meng, Alan ; Li, Xiujuan ; Wang, Xianlin ; Li, Zhenjiang

Ceramics international, 2014, Vol.40 (7), p.9303-9309 [Periódico revisado por pares]

Elsevier Ltd

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  • Título:
    Preparation, photocatalytic properties and mechanism of Fe or N-doped Ag/ZnO nanocomposites
  • Autor: Meng, Alan ; Li, Xiujuan ; Wang, Xianlin ; Li, Zhenjiang
  • Assuntos: Ag/ZnO nanocomposites ; Deposition ; Fe or N-doped ; Ion nitriding ; Iron ; Liquids ; Mechanism ; Nanocomposites ; Photocatalysis ; Photocatalytic property ; Silver ; Zinc oxide
  • É parte de: Ceramics international, 2014, Vol.40 (7), p.9303-9309
  • Notas: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
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    ObjectType-Article-1
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  • Descrição: Fe or N-doped Ag/ZnO nanocomposites were synthesized by the dual-step liquid deposition method and one-step liquid deposition combined with plasma nitriding. The as-synthesized nanocomposites were characterized by transmission electron microcopy, high-resolution transmission electron microcopy, X-ray diffraction and X-ray photoelectron spectroscopy. In addition, the photocatalytic properties of Fe or N-doped Ag/ZnO nanocomposites were evaluated by the degradation of methyl orange (MO) under ultraviolet light irradiation using our self-made photocatalytic apparatus. Results showed that Fe or N-doped Ag/ZnO nanocomposites exhibited superior photocatalytic properties compared to the undoped Ag/ZnO nanocomposites. The concentration of ferric sulfate solution and doping ratio of n(Fe): n(ZnO) played an important role in improving photocatalytic properties of Fe-doped Ag/ZnO nanocomposites and the optimized concentration and doping ratio were determined to be 0.134M and 5%, respectively. Moreover, the plasma nitriding time also played an important role and the optimal plasma nitriding time was 30min. The enhanced photoactivity mechanism for Fe or N-doped Ag/ZnO nanocomposites was adequately discussed.
  • Editor: Elsevier Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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