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Engineering a highly dispersed core@shell structure for efficient photocatalysis: a case study of ternary novel BiOI@MIL-88A(Fe)@g-C3N4 nanocomposite

Gholizadeh Khasevani, S ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.materresbull.2018.05.024
  3. Abstract:
  4. Ternary novel BiOI@MIL-88A(Fe)@g-C3N4 nanocomposite with core@shell structure was successfully synthesized by hydrothermal method. fabricated photocatalysts were characterized and results confirmed the formation of MIL-88A(Fe)@g-C3N4 core@shell structure and subsequently BiOI decoration on the surface of MIL-88A(Fe)@g-C3N4. Photocatalytic performances of prepared samples were investigated for degradation of Acid Blue 92 (AB92), Rhodamine B (RhB) and phenol under visible irradiation. It is clearly demonstrated that the as-prepared ternary BiOI@MIL-88A(Fe)@g-C3N4 composites exhibits exceptional visible-light photocatalytic activities for cationic, anionic as well as neutral pollutant molecules compared to the widely accepted outstanding g-C3N4. It is mainly proved that the exceptional photocatalytic efficiencies are comprehensively ascribed to the porous structure of MIL-88A(Fe)@g-C3N4, greatly promoted charge separation and introduced catalytic functions to the carrier-related redox reactions by decorating BiOI and coupling g-C3N4, to modulate holes and electrons. Additionally, studies performed using radical scavengers showed the main reactive species in the photocataytic reaction for all chemical pollutant degradation. © 2018 Elsevier Ltd
  5. Keywords:
  6. Core@shell ; MIL-88A(Fe) metal organic framework ; Biodegradation ; Bismuth compounds ; Crystalline materials ; Dyes ; Nanocomposites ; Oil field development ; Organometallics ; Photocatalysis ; Pollution ; Redox reactions ; Rhodium compounds ; Shells (structures) ; Core shell ; G-C3N4 ; Hydrothermal methods ; Metal organic framework ; Organic pollution ; Photocatalytic efficiency ; Photocatalytic performance ; Visible light photocatalytic activity ; Iron compounds
  7. Source: Materials Research Bulletin ; Volume 106 , 2018 , Pages 93-102 ; 00255408 (ISSN)
  8. URL: https://www.sciencedirect.com/science/article/pii/S002554081830480X