STUDY OF THE EFFECT OF NH4F CONCENTRATION ON THESTRUCTURE OF ELECTROCHEMICALLY PREPARED TiO2NANOTUBES

Hareith  Jaafar; Abdulalkareem  Alsammerraei; Haidar  Hamdan

doi:10.24996/

Authors

Hareith Jaafar Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq.
Abdulalkareem Alsammerraei Department of Chemistry, College of Science, University of Baghdad, Baghdad, Iraq.
Haidar Hamdan Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq.

DOI:

https://doi.org/10.24996/

Keywords:

TiO2 nanotubes, electrochemical anodization, morphology.

Abstract

In this study Titania nanotube arrays were prepared at room temperature (~25 ºC)
via electrochemical anodization process of pure titanium foil in glycerol base
electrolyte, different concentrations of ammonium fluoride salt (0.5 and 1.5wt.%)
were added to the electrolyte as a tube enhancing agent. When anodizing Ti in 0.5
wt. % NH4F, nanotubes are formed with 54 ± 10 nm tube diameter, 20 ± 3 nm wall
thickness and 1.76 <m tube length. When anodizing Ti in 1.5 wt. % NH4F,
nanotubes are formed with 69 ± 10 nm tube diameter, 29 ± 3 nm wall thickness and
2.71 <m tube length. The morphology and structure of the Titania films were studied
by scanning electron microscopy (SEM), X-ray diffraction (XRD), and atomic force
microscopy (AFM).
PACS numbers: 81.65.Mg, 82.45. +z, 81.10.-h.