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Journal of Materials Science: Materials in Electronics

, Volume 28, Issue 23, pp 17976–17984 | Cite as

Oxidative degradation of benzoic acid using spray deposited WO3/TiO2 thin films

  • Y. M. Hunge
  • M. A. Mahadik
  • R. N. Bulakhe
  • S. P. Yadav
  • J. J. Shim
  • A. V. Moholkar
  • C. H. Bhosale
Article

Abstract

Layered WO3/TiO2 thin films have been deposited onto glass and FTO coated glass substrates using spray pyrolysis method. The structural, morphological, compositional and photocatalytic properties of layered WO3/TiO2 thin films are studied. The photoelectrochemical (PEC) study shows that, both short circuit current (Isc) and open circuit voltage (Voc) are (Isc = 0.575 mA and Voc = 0.485 V) relatively high at 15 ml spraying quantity of TiO2 solution on pre-deposited WO3. SEM images show that the substrate surface is well covered with a uniform and round shaped TiO2 nanoparticles. The AFM images show the rough nature of the film. The specific surface area of the layered WO3/TiO2 thin film is found to be 62.14 m2 g−1. Photoelectrocatalytic degradation of benzoic acid (BA) in aqueous solutions is studied. The end result shows that the degradation percentage of BA using layered WO3/TiO2 photoelectrode has reached 46.56% under sunlight illumination after 320 min. The amount of degradation is confirmed by COD analysis.

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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Y. M. Hunge
    • 1
  • M. A. Mahadik
    • 2
  • R. N. Bulakhe
    • 3
  • S. P. Yadav
    • 4
  • J. J. Shim
    • 3
  • A. V. Moholkar
    • 5
  • C. H. Bhosale
    • 5
  1. 1.Department of PhysicsWalchand Institute of TechnologySolapurIndia
  2. 2.Division of BiotechnologyChonbuk National UniversityIksanSouth Korea
  3. 3.School of Chemical EngineeringYeungnam UniversityGyeongbukSouth Korea
  4. 4.Karmaveer Bhaurao Patil CollegeNavi MumbaiIndia
  5. 5.Electrochemical Materials Laboratory, Department of PhysicsShivaji UniversityKolhapurIndia

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