Nanostructured TiO₂ Materials: Preparation, Properties and Potential Applications (3P’s)

Abstract:

Nanostructured materials are a new class of materials which provide one of the greatest potentials for improving performance and extended capabilities of products in a number of applications. In particular nanostructured TiO₂ was used as photocatalysts, gas sensor, solar cells and nanocomposite biomaterials. For each of these applications, aspects such as surface morphology, crystallinity and chemistry of the titania-based materials are the key parameters to be settled for the process optimization. A series of nanostructured TiO₂ materials (TiO₂ nanotubes, TiO₂ nanorods, TiO₂ nanoparticles) was synthesized using simple hydrothermal methods. X-Ray Diffraction (XRD), Field Emission Scanning Electron microscope (FESEM) and Brunauer–Emmett–Teller (BET) surface area characterization was carried out to study the properties of synthesized nanostructured TiO₂ materials. The performance of synthesized nanostructured TiO₂ was evaluated for various applications such as photocatalyst for methyl orange (MO) degradation and anti-bacterial thin film for biomedical and food packaging. Among the nanostructured TiO₂ materials, TiO₂ nanotubes shows the highest activity regardless of their applications. This is probably due to their nanotubular morphology in which provided high surface area materials. The surface area of TiO₂ nanotubes was found to be 226.52 m²/g. The outer and inner diameters of nanotubes are 4 nm and 10 nm, respectively with several hundred nanometers in length. Anatase TiO₂ phase structure and crystallinity of TiO₂ nanotubes supports the good performances of the nanostructured materials.

• Periodical: Solid State Phenomena (Volume 266)
• Pages: 84-89
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.266.84
• Online since: October 2017
• Authors: Razali Mohd Hasmizam*, Nur Arifah Ismail, Khairul Anuar Mat Amin
• Keywords: Antibacterial Material, Nanomaterials, Photocatalyst, Titanium Dioxide

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