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Preparation of Ag-Al₂O₃ nano structures by combustion method and investigation of photocatalytic activity

Einafshar, E ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.1111/ijac.13837
  3. Publisher: John Wiley and Sons Inc , 2021
  4. Abstract:
  5. In this research, Ag-Al2O3 nanostructures have been prepared via combustion synthesis and ammonium acetate and urea have been applied as fuels. The prepared Ag-Al2O3 nanostructures were characterized by DTA, XRD, SEM, TEM, and BET spectroscopy. The effect of different ratios of silver to alumina and fuel percentage on morphology and particle size of prepared products were investigated. The results showed that using ammonium acetate fuel led to the production of Ag-γ-Al2O3 nanocompounds, while using urea produced Ag-α-Al2O3. Also, the photocatalytic activity of Ag-Al2O3 nanostructures for Congo red degradation was evaluated by UV-Vis diffuse reflectance spectroscopy. The photocatalytic activity of Ag-Al2O3 was examined under UV-Vis irradiation and showed significant photocatalytic efficiency. © 2021 American Ceramics Society
  6. Keywords:
  7. Alumina ; Aluminum oxide ; Azo dyes ; Combustion synthesis ; Fuels ; Metabolism ; Nanostructures ; Particle size ; Photocatalytic activity ; Silver metallography ; Urea ; Volatile fatty acids ; Ammonium acetate ; Combustion method ; Congo red ; Nanocompounds ; Photocatalytic efficiency ; UV-Vis diffuse reflectance spectroscopy ; Silver compounds
  8. Source: International Journal of Applied Ceramic Technology ; Volume 18, Issue 6 , 2021 , Pages 2064-2074 ; 1546542X (ISSN)
  9. URL: https://ceramics.onlinelibrary.wiley.com/doi/10.1111/ijac.13837?af=R