| 研究実績の概要 |
In this work, we developed a submerged radical reactions method for the fabrication of metal nano oxides for photo functional applications. The radical reactions were generated by light illumination (UV, and visible light), ultrasound, and reactive oxygen species, and this method was applied for copper oxide, tungsten and molybdenum hydrate oxides nanoparticles fabrication.
For the copper oxide fabrication, both the reactive oxygen species (H2O2, HClO, and H2O2-HClO mixture) and light illumination could enhance the growth of the nano particles.
For the tungsten and molybdenum hydrate oxides, both H2O2 and UV light illumination are necessary for the crystal growth. H2O2 can dissolve the metals to obtain the metal ions solutions. UV light can promote the formation of nanocrystal nuclei. In addition, introducing heat energy by using infrared light illumination can accelerate the fabrication process.
The fabricated oxides show high specific capacitance by photoelectrochemical analysis, which indicate their photo-functional applications. In addition, the doped tungsten and molybdenum hydrate oxides show high solar light absorption, especially in the visible and infrared light range, which indicates their potential for all solar light applications.
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