Influence of the number of layers on photocatalysis activity of TiO2 thin films | Zendy

Abderhamane Boutelala | Zendy; Fouzia Bourfaa | Zendy; M. Mahtali | Zendy

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Influence of the number of layers on photocatalysis activity of TiO2 thin films

Author(s) -

Abderhamane Boutelala,

Fouzia Bourfaa,

M. Mahtali

Publication year - 2018

Publication title -

world journal of environmental research

Language(s) - English

Resource type - Journals

ISSN - 2301-2641

DOI - 10.18844/wjer.v7i2.2970

Subject(s) - photocatalysis , anatase , materials science , methylene blue , raman spectroscopy , thin film , chemical engineering , titanium oxide , diffraction , oxide , titanium dioxide , semiconductor , nanotechnology , optics , chemistry , composite material , optoelectronics , organic chemistry , catalysis , metallurgy , physics , engineering

Titanium oxide (TiO2) is one of the most important semiconductors because of their properties . This study was carried out to investigate the influence of the number of layers of Co -doped TiO2 thin films obtained by sol–gel method on the photocatalytic activi ty. The crystalline s tructure of films is characterised by means of X-ray di ffraction and Raman spectroscopy. All the films were of anatase phase and the particle size was in nanoscale. The surface morphology was s tudied by atomic force microscopy. The optical properties were investigated by UV-visible spectroscopy. The photocatalytic properties of the samples were tested on the degradation of methylene blue dye solution. The results indicated that photocatalysis is more important when the number of dipping of films increases.

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