Journal of Applied Electrochemistry

, Volume 43, Issue 4, pp 467–479

Photoelectrocatalytic bleaching of p-nitrosodimethylaniline using Ti/TiO2 nanostructured electrodes deposited by means of a pulsed laser deposition process

  • Rimeh Daghrir
  • Patrick Drogui
  • Ibrahima Ka
  • My Ali El Khakani
  • Didier Robert
Original Paper


This study investigated the potential use of oxidation in a photoelectrocatalytic cell for bleaching p-nitrosodimethylaniline. The Ti/TiO2 used as photo-anode was prepared by a pulsed laser deposition method. The TiO2 coatings were found to have rutile and anatase structures consisting of approximately 10 and 15 nm in diameter, respectively. A relatively high degradation rate of p-nitrosodimethylaniline was recorded using the photoelectrocatalytic cell, compared to those measured during conventional electrochemical oxidation, direct photolysis and photocatalysis processes. The influence of different parameters such as crystallographic structure of Ti/TiO2, type of cathode, potential applied, electrolysis time, UV irradiation and initial pH were investigated. The photoelectrocatalytic cell using Ti/TiO2 (anatase structure) as photo-anode and vitreous carbon as cathode operated at a current intensity of 0.1 A for 120 min with 254 nm of UV irradiation was found to have the best conditions to remove high amounts of p-nitrosodimethylaniline (22.6 × 10−3 mM h−1).


Photoelectrocatalytic oxidation p-Nitrosodimethylaniline Reactive oxygen species Titanium dioxide semiconductor photocatalyst 

List of symbols


Conduction band


Direct photolysis








Photoelectrocatalytic oxidation


Pulsed laser deposition




Reactive oxygen species


Stainless steel


Scanning electron microscopy


Titanium dioxide


Valence band


Vitreous carbon


X-ray diffraction


X-ray photoelectron spectroscopy


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Rimeh Daghrir
    • 1
  • Patrick Drogui
    • 1
  • Ibrahima Ka
    • 2
  • My Ali El Khakani
    • 2
  • Didier Robert
    • 3
  1. 1.Institut national de la recherche scientifique, Centre Eau, Terre et EnvironnementUniversité du QuébecQuébecCanada
  2. 2.Institut national de la recherche scientifique, INRS-Énergie, Matériaux et TélécommunicationsUniversité du QuébecVarennesCanada
  3. 3.Antenne de Saint-Avold du Laboratoire des Matériaux, Surface et Procédés pour la Catalyse (LMSPC) CNRS-UMR 7515Université De LorraineSaint-AvoldFrance

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