Estimating the degradation of methylethionium chloride dye on nanotubular TiO2 structure

K. M. Deen, A. Farooq, M. A. Raza, R. Ahmad, W. Haider

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


In this study the photocatalytic behavior of as-anodized and heat treated surfaces of Ti6Al4V was investigated electrochemically in methylethionium chloride solution in dark and under illumination at 60W and 100W. X-ray diffraction pattern of as-anodized surface revealed oxygen deficient Ti6O phase, which was converted to rutile/anatase phases by heat treatment in air. Potentiodynamic scans showed variation in current density during anodic polarization due to the electronic traps within sub-band energy states by the amorphous nature of as formed structure hence lower catalytic activity than heat-treated specimen. Impedance spectroscopy of heat-treated surface in dye solution under dark and light depicted lower charge transfer resistance, recombination admittance and higher charge transfer coefficient than as-anodized. The UV-vis spectroscopy of heat treated TiO2 nanotubular structure represented 45.05% photocatalytic efficiency.

Original languageEnglish
Pages (from-to)153-158
Number of pages6
JournalJournal of Industrial and Engineering Chemistry
StatePublished - Feb 25 2015


  • Electrochemical
  • Impedance spectroscopy
  • Nanotubular
  • Photocatalytic


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