Adsorption and photocatalytic study of dye degradation over the g‐C 3 N 4 /W 18 O 49 nanocomposite
| Autor: | Le Xu, Xueting Chang, Danxia Gu, Xiaokun Jin, Zhao Li, Linge Chai, Shibin Sun |
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| Rok vydání: | 2018 |
| Předmět: |
Nanocomposite
Materials science Biomedical Engineering Graphitic carbon nitride Bioengineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Adsorption chemistry Photocatalysis Methyl orange General Materials Science Nanorod 0210 nano-technology Methylene blue Nuclear chemistry |
| Zdroj: | Micro & Nano Letters. 13:541-545 |
| ISSN: | 1750-0443 |
| Popis: | A heterogeneous nanocomposite (NC) of g-C 3 N 4 /W 18 O 49 based on the coupling of W 18 O 49 nanorods (NRs) with the graphitic carbon nitride (g-C 3 N 4 ) sheets has been synthesised via a solvothermal method. The as-synthesised products were characterised by X-ray diffraction, X-ray photoelectron spectrometry, and transmission electron microscopy. The g-C 3 N 4 /W 18 O 49 NC exhibited very strong adsorption ability towards the methylene blue (MB) dye and demonstrated a high removal efficiency of 99.14% after 0.5 h equilibration in dark. Compared to the g-C 3 N 4 sheets and W 18 O 49 NRs, the g-C 3 N 4 /W 18 O 49 NC exhibited higher removal efficiencies towards both the MB and methyl orange (MO) dyes via a combination of adsorption and degradation. The photocatalytic process of the g-C 3 N 4 /W 18 O 49 NC followed the Z-scheme photocatalytic mechanism. This work provides an efficient strategy for the synthesis of g-C 3 N 4 -based heterogeneous photocatalysts. |
| Databáze: | OpenAIRE |
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