Facile Synthesis, Characterization and Enhanced Photocatalytic Activities of NiWO4/Nitrogen Doped Reduced Graphene Oxide Nanocomposites
| Autor: | Brindha Appavu, Thamaraiselvi Kanagaraj, Sakthivel Kumaravel, Elangovan Erusappan, Sivakumar Thiripuranthagan |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Diffuse reflectance infrared fourier transform Graphene Biomedical Engineering Oxide Nanoparticle Bioengineering 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Congo red law.invention chemistry.chemical_compound symbols.namesake chemistry Chemical engineering law Photocatalysis symbols General Materials Science 0210 nano-technology Photodegradation Raman spectroscopy |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 19:2664-2670 |
| ISSN: | 1533-4880 |
| DOI: | 10.1166/jnn.2019.15835 |
| Popis: | In this study, we report the synthesis of NiWO₄/nitrogen doped reduced graphene oxide nano composite by one-pot hydrothermal method. The NiWO₄ nano particles were dispersed uniformly on graphene sheets. The as prepared NiWO₄, NiWO₄/5% rGO and NiWO₄/N-5% rGO composites were analytically characterized by Powder X-ray diffraction (XRD), Raman spectroscopy, Diffuse reflectance spectroscopy (DRS-UV), Scanning electron microscopy (SEM) and N₂ adsorption-desorption isotherm. The photocatalytic performances of the synthesized composites were evaluated towards the photo degradation of congo red (CR) under visible light radiation. The synthesized catalysts showed remarkable photocatalytic activity in the degradation of CR. Among the catalysts NiWO₄/N-5% rGO showed the highest decolourization of congo red (92%) under visible light irradiation. This high activity is attributed to its high e- transport property. Our results provide an invaluable methodology for designing high-performance photo-catalysts for new energy applications. |
| Databáze: | OpenAIRE |
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