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Enhancing the photocatalytic performance of Ag3PO4 by incorporating g-C3N4 and MWCNTs: Optimisation of removal of Acid Blue 92

Tasviri, M ; Sharif University of Technology | 2016

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  1. Type of Document: Article
  2. DOI: 10.3184/146867816X14702308373591
  3. Publisher: Science Reviews 2000 Ltd , 2016
  4. Abstract:
  5. The main aim of the present study was to enhance the degradation capacity of Acid Blue 92 (AB92) by visible-light-active Ag3PO4 nanocomposites based on g-C3N4 and Multiwalled Carbon Nanotubes (MWCNTs). The nanocomposites were fabricated through a tunable in situ deposition method. The properties of the resulting samples were investigated by X-ray diffraction, scanning electron microscopy and Fourier transform infrared (FTIR) spectroscopy. The photocatalytic activity results revealed that the Ag3PO4/g-C3N4 heterojunction inorganic/organic composite exhibited an improvement in both efficiency and the rate of AB92 photodegradation in comparison with the others. The enhanced photocatalytic activity of the Ag3PO4/g-C3N4 heterostructure under visible light irradiation is mainly ascribed to the interfacial effect of the nanocomposite in inhibiting the unfavourable recombination of photogenerated electron/hole pairs, the synergistic effect and the energy band structure. A possible mechanism for the improved photocatalytic activity of the Ag3PO4/g-C3N4 nanocomposite is also proposed
  6. Keywords:
  7. Ag3PO4 nanocomposites ; Photocatalysis ; Band structure ; Carbon ; Carbon nanotubes ; Fourier transform infrared spectroscopy ; Heterojunctions ; Light ; Nanocomposites ; Photodegradation ; Scanning electron microscopy ; Silver ; X- ray diffraction ; Yarn ; Acid Blue 92 ; G-C3N4 sheets ; Inorganic/organic composites ; Photocatalytic activities ; Photocatalytic performance ; Photogenerated electrons ; Visible-light irradiation ; Multiwalled carbon nanotubes (MWCN)
  8. Source: Progress in Reaction Kinetics and Mechanism ; Volume 41, Issue 3 , 2016 , Pages 277-288 ; 14686783 (ISSN)
  9. URL: http://www.ingentaconnect.com/content/stl/prk/2016/00000041/00000003/art00007