Production and Characterization of Doped and Non-Doped Titanium Dioxide Coatings


Süzgün C., Özarslan A. C., Pişkin M. B., Derun E.

3th International Congress of Engineering and Natural Sciences Studies, Ankara, Türkiye, 24 - 25 Mayıs 2023, ss.621-640

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Ankara
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.621-640
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

In recent years, the surface properties of TiO2 have been studied intensively. Stimulation of TiO2 semiconductor metal oxide with ultraviolet (UV) light enables it to gain self-cleaning, wettability conversion properties and photocatalytic activites. The unique behavior of these reversible surfaces has provided significant potential in various high-tech fields. TiO2 has three different crystal structures. These are anatase, rutile and brookite.The anatase crystal structure of TiO2 has a high reduction power. Molecular oxygen (O2), which is a very important reaction in the self-cleaning mechanism, can perform superoxide (O2•-) electrolytic reduction. By this property, superoxides formed by decomposing water molecules into ions under UV light break down the ionic balance in the cell membrane of microorganisms and cause breaking of the cell. In this respect, UV doped TiO2 maintains its antibacterial properties and the amount of product as long as it is used. TiO2 and TTIP (Titanium (IV) isopropoxide) is used as material source for the photocatalytic activation in the production processes to be realized by the sol-gel method, boric acid as boron source is used. Experimental studies are selected from two methods that give the highest anatase score. Then, this method is doped with different ratios of boric acid and characterization procedures are performed. In this study, antibacterial coatings, which are of great importance worldwide, are produced by using TiO2 with high photocatalytic properties. Different crystal structures of TiO2 and these crystal structure transformation modifications were investigated. It has been observed that it can show a high photocatalytic effect at high temperatures.