The reduction of fossil fuels and the increasing levels of greenhouse gases are majorly affecting both energy access and environmental impacts. Researchers are very active in the development of new technologies allowing the regeneration of clean air and water, eliminating dangerous by-products and reducing energy consumption. To tackle this, various metal oxide semiconductors are the most analysed materials for the application of photocatalysis. In this study, the self-aligned ordered hexagonal titania nanotube arrays were fabricated by the two electrode method. The experiment shows that electrolyte composition (NH4F in Ethylene Glycol), anodizing time, potential and temperature affected the formation of TNAs. The development of this nanostructure involves the internal growth of a porous oxide layer that interface into nanotubes. The morphology of the sample was observed using Field Emission Scanning Electron Microscope, while X-ray Diffraction spectrum was used to observe the anatase or rutile phase. In addition, the Energy Dispersive X-ray spectra revealed the elemental compositions of titanium dioxide nanotubes. UV- Diffuse Reflectance Spectrum was used to investigate the optical characteristics..

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Highly Ordered Titania Nanotube Arrays Synthesized via One-Faced and Single-Step Anodization

  • A. Ashika,
  • V. Anslin Ferby

摘要

The reduction of fossil fuels and the increasing levels of greenhouse gases are majorly affecting both energy access and environmental impacts. Researchers are very active in the development of new technologies allowing the regeneration of clean air and water, eliminating dangerous by-products and reducing energy consumption. To tackle this, various metal oxide semiconductors are the most analysed materials for the application of photocatalysis. In this study, the self-aligned ordered hexagonal titania nanotube arrays were fabricated by the two electrode method. The experiment shows that electrolyte composition (NH4F in Ethylene Glycol), anodizing time, potential and temperature affected the formation of TNAs. The development of this nanostructure involves the internal growth of a porous oxide layer that interface into nanotubes. The morphology of the sample was observed using Field Emission Scanning Electron Microscope, while X-ray Diffraction spectrum was used to observe the anatase or rutile phase. In addition, the Energy Dispersive X-ray spectra revealed the elemental compositions of titanium dioxide nanotubes. UV- Diffuse Reflectance Spectrum was used to investigate the optical characteristics..