Nikolaos Xekoukoulotakis
Assistant Professor, Environmental Organic Chemistry - Micro-pollution 
Environmental Organic Chemistry and Micro-pollution Laboratory
Division II: Environmental Process Design and Analysis

Extended CV (pdf)



  • 2001: PhD in Chemistry, School of Sciences, Department of Chemistry, Aristotle University of Thessaloniki.
  • 1995: Degree in Chemistry, School of Sciences, Department of Chemistry, Aristotle University of Thessaloniki.

Research Interests

Degradation of organic pollutants in aqueous phase (water and wastewater) using oxidative chemical degradation methods such as:

  • UV in presence of Η2Ο2 (UV/Η2Ο2)
  • Ozon (Ο3)
  • Omogeneous and heterogeneous photocatalysis
  • Electrochemical oxidation..

Green Chemistry and Technology with emphasis on the development and implementation of environmentally friendly processes.

Participation in Research Programs and Projects

On-going Research Programmes

  • Photocatalytic and membrane technology process for olive oil mill waste water treatment (PhotoMem), European Union, 7th Framework Programme, Research for SMEs.

Recent Research Programmes

  • Innovative Solutions for Extracting High Value Natural Compounds, European Union, 6th Framework Programme, Marie Curie Research Training Networks, InSolEx Project.
  • Estrogens decomposition in water and in treated municipal and hospital wastewater using heterogeneous oxidative phorocatalysis, Research Promotion Foundation of Cyprus. 
  • Tackling organic micro-pollutants in secondary biological effluent using innovative oxidation technologies,
  • Treatment of dyes in industrial effluent with a combination of chemical (photocatalysis, sonolysis and sono-photocatalysis) and biological processes, Hellenic Ministry of Education, Pythagoras ΙI

Distinctions and Awards

  • 2007: Scholarship of the German Academic Exchange Agency (Deutscher Akademischer Ausstausch Dienst, DAAD).
  • 1996 - 2000: Scholarship of the National Scholarship Foundation(ΙΚΥ) for a PhD dissertation.

Recent Publications

  • Z. Frontistis, N.P. .P. Xekoukoulotakis, E. Hapeshi, D. Venieri, D. Fatta-Kassinos, D. Mantzavinos, Fast degradation of estrogen hormones in environmental matrices by photo-Fenton oxidation under simulated solar radiation, Chemical Engineering Journal 178 (2011) 175-182.
  • N.P. Xekoukoulotakis, C. Drosou, C. Brebou, E. Chatzisymeon, E. Hapeshi, D. Fatta-Kassinos, D. Mantzavinos, Kinetics of UV-A/TiO2 photocatalytic degradation and mineralization of the antibiotic sulfamethoxazole in aqueous matrices, Catalysis Today 161 (2011) 163-168.
  • C. Drosou, A. Coz, N.P. Xekoukoulotakis, A. Moya, Y. Vergara, D. Mantzavinos, Peracetic acid-enhanced photocatalytic and sonophotocatalytic inactivation of E. coli in aqueous suspensions, Journal of Chemical Technolology and Biotechnology 85 (2010) 1049-1053.
  • N.P. Xekoukoulotakis, D. Mantzavinos, R. Dillert, D. Bahnemann, Synthesis and photocatalytic activity of boron-doped TiO2 in aqueous suspensions under UV-A irradiation, Water Science and Technology 61 (2010) 2501-2506.
  • P. Grafias, N.P. Xekoukoulotakis, D. Mantzavinos, E. Diamadopoulos, Pilot treatment of olive pomace leachate by vertical-flow constructed wetland and electrochemical oxidation: An efficient hybrid process, Water Research 44 (2010) 2773-2780.
  • N.P. Xekoukoulotakis, N. Xinidis, M. Chroni, D. Mantzavinos, D. Venieri, E. Hapeshi, D. Kassinos, UV-A/TiO2 photocatalytic decomposition of erythromycin in water: Factors affecting mineralization and antibiotic activity, Catalysis Today 151 (2010) 29-33.
  • N. Lydakis-Simantiris, D. Riga, E. Katsivela, D. Mantzavinos, N.P. Xekoukoulotakis, Disinfection of spring water and secondary treated municipal wastewater by TiO2 photocatalysis, Desalination 250 (2010) 351-355.
  • E. Tsimas, K. Tyrovola, N.P. Xekoukoulotakis, N. P. Nikolaidis, E. Diamadopoulos, D. Mantzavinos, Simultaneous photocatalytic oxidation of As(III) and humic acid in aqueous TiO2 suspensions. Journal of Hazardous Materials 169 (2009) 376–385.
  • D.E. Kritikos, N.P. Xekoukoulotakis, E. Psillakis, D. Mantzavinos, Photocatalytic degradation of reactive black 5 in aqueous solutions: Effect of operating conditions and coupling with ultrasound irradiation, Water Research, 41 (2007) 2236-2246.
  • P.A. Pekakis, N.P. Xekoukoulotakis and D. Mantzavinos, Treatment of textile dyehouse wastewater by TiO2 photocatalysis, Water Research, 40 (2006) 1276-1286.

Ph.D. Candidates

  • Katerina Drosou