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Plasma-Induced Synthesis of CuO Nanofibers and ZnO Nanoflowers in Water |
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| Authors: | Xiulan Hu Xin Zhang Xiaodong Shen Hongtao Li Osamu Takai Nagahiro Saito |
| Institution: | 1. College of Materials Science and Engineering, Nanjing Tech University, Xin-Mo-Fan Road No. 5, Nanjing, 210009, Jiangsu, China 6. College of Materials Science and Engineering, Nanjing Tech University, Xin-Mo-Fan Road No. 5, Nanjing, 210009, Jiangsu, China 2. College of Automation and Electrical Engineering, Nanjing Tech University, Nanjing, China 3. Materials and Surface Engineering Research Institute, Kanto Gakuin University, Yokohama, Japan 4. Green Mobility Collaborative Research Center, Nagoya University, Nagoya, Japan 5. Department of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan |
| Abstract: | Fiber-shaped cupric oxide (CuO) nanoparticles and flower-shaped ZnO nanoparticles were facilely synthesized by plasma-induced technique directly from copper and zinc electrode pair in water, respectively. The phase composition, morphologies and optical property of nanoparticles have been investigated by energy dispersive X-ray analysis, X-ray powder diffraction, transmission electron microscopy and UV–vis. The in situ analysis by an optical emission spectroscopy clarified the formation mechanism. Plasma was generated from the discharge between a metal electrode pair in water by a pulse direct current power. CuO and ZnO nanoparticles were synthesized via almost the same formation mechanism, which were prepared via the rapid energetic radicals’ bombardment to electrodes’ surface, atom vapour diffusion, plasma expansion, solution medium condensation, and in situ oxygen reaction and further growth. This novel plasma-induced technique will become a potential application in nanomaterials synthesis. |
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