Details

Autor(en) / Beteiligte

• Al-Oubidy, Esraa A.
• Kadhim, Firas J.

Titel

Photocatalytic activity of anatase titanium dioxide nanostructures prepared by reactive magnetron sputtering technique

Ist Teil von

• Optical and quantum electronics, 2019-01, Vol.51 (1), p.1-11, Article 23

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2019

Quelle

SpringerLink Journals - AutoHoldings

Beschreibungen/Notizen

• In this work, nanostructured titanium dioxide (TiO 2 ) photocatalysts with high optical and structural homogeneity were successfully synthesized by dc reactive magnetron sputtering technique. The TiO 2 thin films were produced with high structural homogeneity without any heat treatment. Analysis of the X-ray diffraction patterns and UV–visible spectroscopy gave an indication that the structure of prepared films is anatase with energy band gap of 3.23 eV. The Fourier-transform infrared spectroscopy has confirmed the formation of Ti–O bond. The average size of TiO 2 particles in the deposited films was ranging in 5–7 nm. These nanostructures are very applicable as photocatalysts as their photocatalytic activity was determined from the degradation rate with UV irradiation time as the first order reaction rate constant was determined to be 2.4 × 10 −3  min −1 .