Large-scale synthesis of ZnO nanostructures by pulse electrochemical method and their photocatalytic properties
| Autor: | Nina V. Smirnova, Marina Avramenko, I. N. Leontyev, Denis M. Zhigunov, Anna Ulyankina |
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| Rok vydání: | 2018 |
| Předmět: |
Nanostructure
Materials science Mechanical Engineering chemistry.chemical_element 02 engineering and technology Electrolyte Zinc 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Reaction rate constant chemistry Chemical engineering Mechanics of Materials Specific surface area Photocatalysis General Materials Science 0210 nano-technology Methylene blue |
| Zdroj: | Materials Science in Semiconductor Processing. 76:7-13 |
| ISSN: | 1369-8001 |
| Popis: | In this paper, we report a simple environment-friendly and large-scale approach to synthesis of highly crystalline zinc oxide nanostructures using pulse alternating current (PAC). The morphological results demonstrate flower-like architectures of nanoparticle-based and nanorod-based zinc oxide (ZnO-NPs and ZnO-NRs) obtained in KCl and NaCl as electrolytes. The photocatalytic activity of the obtained materials was performed in methylene blue dye degradation reaction under UV light irradiation. A high efficiency of ~ 90% within 60 min with excellent rate constant (k = 0.0386 min−1) was observed in the presence of ZnO-NPs synthesized in 2 M KCl which is attributed to the larger specific surface area (27 m2 g−1), total pore volume and more defective structure. |
| Databáze: | OpenAIRE |
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