Optical, structural and photocatalysis properties of Cu-doped TiO 2 thin films

F. Bensouici*, M. Bououdina, A. A. Dakhel, R. Tala-Ighil, M. Tounane, A. Iratni, T. Souier, S. Liu, W. Cai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

162 Citations (Scopus)


Pure and Cu +2 doped TiO 2 thin films have been successfully deposited onto glass substrate by sol–gel dip-coating. The films were annealed at 450 °C for 1 h and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM-EDX), atomic force microscopy (AFM), UV–vis spectrophotometer and photocatalytic degradation of methylene blue. XRD confirmed the presence of two phases at higher Cu concentration; TiO 2 anatase and CuO. AFM analysis showed that the surface roughness increases within increasing Cu content as well as the presence of large aggregates at higher Cu content. SEM observations confirmed the granular structure of the films, and EDX analysis revealed a low solubility limit (effective doping) of Cu into TiO 2 lattice. It was found that the optical band gap energy decreases with increasing Cu content. At constant irradiation time, the photo-degradation of methylene blue rate decreased with increasing concentration of Cu +2 .

Original languageEnglish
Pages (from-to)110-116
Number of pages7
JournalApplied Surface Science
Publication statusPublished - Feb 15 2017


  • Anatase TiO
  • Cu doped TiO thin films
  • Optical properties
  • Photocatalytic activity
  • Structural properties

ASJC Scopus subject areas

  • Condensed Matter Physics
  • General Physics and Astronomy
  • Surfaces, Coatings and Films
  • General Chemistry
  • Surfaces and Interfaces


Dive into the research topics of 'Optical, structural and photocatalysis properties of Cu-doped TiO 2 thin films'. Together they form a unique fingerprint.

Cite this