Research Activities


A2. Photocatalytic processes with TiO2 nanostructured materials 

(a)   Photodegradation of organic pollutants by TiO2. Elucidation of the reaction mechanism
(b)   Comparison of the photoredox properties of polyoxometallates and semiconducting  particles

Funded Projects

Research Projects

  1. “CYANOWATER- Cyanotoxins in Fresh Waters, Advances in Analysis, Occurrence and Treatment”, 2012-2015, General Secretariat for Research and Technology (GSRT) – Greek Ministry of Education, Action “EXCELLENCE” (ARISTEIA I), 350 Κ€ (Project Coordinator: Dr. A. Hiskia). This project has been successfully evaluated in a peer review process and classified between 15 (out of 144) more outstanding projects for their highest quality and scientific excellence in the field of Energy and Environment. The main objective of the Action “EXCELLENCE” is to support highly talented researchers, working in Greece, who have compiled an outstanding record in their respective fields and have the potential to advance the frontiers of scientific knowledge and scholarship. CYANOWATER project aims in filling research gaps and achieving breakthrough results in (a) Development of advanced analytical methods for emerging cyanotoxins (CTs) and for simultaneous analysis of different groups of CTs, (b) Identification of the toxin-producing cyanobacteria species in freshwater bodies and (c) Development of novel advanced oxidation processes for the detoxification of water contaminated with CTs. The strong ties and close collaboration of the CYANOWATER research team (Headed by Dr. A. Hiskia as Principal Investigator) with leading research partners and water supply companies will permit technology transfer and direct and strong beneficial impacts for the international research community involved in this field but also important societal and economic impacts at a national, European and international level. An extended synopsis of the project can be found here.
  2. “Advanced materials and devices for energy collection and administration”, 2013-2015, Research Program “KRIPIS” financed by the Greek Ministry of Education and the European Commission. In the project frame, our research focused on the preparation of polyoxometalate-stabilised silver nanoparticles and their incorporation in high performing bulk heterojunction organic photovoltaics. Project Coordinator: Dr. D. Niarchos, INN, NCSR Demokritos. Funding: 883,2 K€.
  3. “Development of Advanced Oxidation Processes (AOPs) with the use of nanomaterials and sunlight, for the removal of various organic toxic micropollutants, endocrine disrupters and cyanotoxins from natural waters and sewages”, 2012-2015, Research Program “Thales” financed by the Greek Ministry of Education & Religious Affairs and the European Commission. Project Coordinator: Prof. T. Albanis, Department of Chemistry, University of Ioannina. Group budget: 60 M€.
  4. “Water Detoxification Using Innovative vi-Nanocatalysts”, 2009-2012, European Union – Seventh Framework Programme, Theme [6–4] [Environment (including Climate Change) Nanosciences, Nanotechnologies, Materials and New Production Technologies – NMP], Clean Water project, Grand agreement No 227017, 117 K€.
  5. “Determination of taste and odor compounds in water”, 2009-2010, Research project funded by EYDAP SA, 20 Κ€.
  6. “Development of a multi-residue method for the determination of pesticides in water by LC-MS/MS. Determination of cyanotoxins and pesticides in drinking and surface water”, 2008 – 2010, EYDAP S.A. Contract No 08081049-3, 25 K€.
  7. “Development of new biomagnetic nanomaterials for medical purposes”, 2006-2008, G.S.R.T, Ministry of Development, PEP Project, 9,9 K€.
  8. “Development of an integrated system for the monitoring of cyanotoxins in surface and treated water using combination of advanced analytical techniques”, 2006-2007, G.S.R.T, Ministry of Development, PABET Project, 27 K€.
  9. “Photocatalysis for the mild and selective Functionalization of non-activated C-H bonds”, 2004 – 2008, COST Action D29.
  10. “Visible light induced degradation of textile dyes using tungstate catalysts”, 2003-2006, Joint Research and Technology Program with USA (Prof. P.V. Kamat), G.S.R.T, Ministry of Development, Greece, 59,85 K€.
  11. “Immobilization of Polyoxometalates in inert and active substrates employed as heterogeneous photocatalysts for the detoxification of aquatic systems”, 2003-2005, Joint Research and Technology Program with China, G.S.R.T, Ministry of Development, Greece, 11,7 K€.
  12. “Development of photocatalytic technology for the purfication of toxic wastewater using metal oxides and polyoxometalates”, 2003-2004, G.S.R.T., Ministry of Development, Greece, project “ΠΡΑΞΕ”, 44 K€.
  13. “Advanced Methods for the treatment of liquid wastes and neutralization of gas pollutants”, 2000-2006. G.S.R.T., Ministry of Development, Greece, project “Human Networks for Research and Technological Education”.
  14. “Sonochemical and photocatalytic destruction of triazine herbicides”, 1999-2001, Joint Research and Technology Program with Germany (Prof. H. Hennig), G.S.R.T, Ministry of Development, Greece, 13 K€.
  15. “Photocatalytic degradation of organic pollutants by POM and TiO2. Comparison studies”, 1999-2001, Joint Research and Technology Program with France (Dr. P. Pichat), G.S.R.T, Ministry of Development, Greece, 15 K€.
  16. “Natural and Artificial Photosynthesis”, 2000-2001, G.S.R.T., Ministry of Development, Greece, project “PENED 1999”, 47 K€.
  17. “Photocatalytic managent of wastewater”, 1999-2001, G.S.R.T., Ministry of Development, Greece, project EPPET ΙΙ, 174 K€.
  18. “Development of decontamination technologies. Metal oxides and semiconductors in pesticides degradation”, 1999-2001, G.S.R.T., Ministry of Development, Greece, project “PENED 1999”, 73 K€.
  19. “Degradation of pollutants through homogeneous and heterogeneous photocatalysis” 1997-1999, Joint Research and Technology Program with Italy (Prof. E. Pelizzetti), G.S.R.T, Ministry of Development, Greece, 55 K€.


  1. «Cyanobacterial blooms and toxins in water resources: Occurrence, impacts and management», COST Action ES1105, 2012 – 2016, Grant Holder: NCSR “DEMOKRITOS”, Budget per year:~180 K€. Over 60 partners (scientists, other professionals and companies), from 32 European countries as well as from USA, participate in this Action. The main objective of the Action is to increase, disseminate and harmonize capabilities across Europe for the risk management of cyanobacteria and cyanotoxins in water bodies, by establishing strong and synergistic links between academia, authorities, industry and citizens. The achievement of the above objective requires inter-and multidisciplinary efforts. A strong and integrated consortium of Action has been developed and includes scientists and researchers with recognized expertise in analytical chemistry, molecular biology, aquatic/catchment ecology, toxicology and water engineering plus end-users and stakeholders (public authorities, water supply utilities, industry). This arrival of this Action is timely because new challenges in the field have appeared recently including emerging toxins and cyanobacterial species hitherto unknown in Europe, leading to the preparation of new legislation and regulations in some European countries.
  2. “Polyoxometalate Chemistry for Molecular Nanoscience (PoCheMoN)”, COST Action CM1203, 2012-2016, participation in the Action as Management Committee and core group Members (Dr. A Hiskia, Dr. T. Triantis). The main objective of PoCheMoN is to accelerate POM-based Molecular Nanoscience by creating a coherent network for world-leading education and research in POM chemistry. This first overarching COST Action in this area consolidates the European POM community and promotes strategic and efficient POM research through collaboration, thereby creating a readily accessible knowledge base for the rapid uptake of POM chemistry into Molecular Nanoscience and generating breakthrough technologies through links with aligned disciplines and companies.

  Oher projects

  1. Services to the following companies and organizations: ETMA S.A., SHELMAN S.A., ELPE S.A. PLINIOS S.A., GLASSART S.A., EDRASOMIHANIKI S.A., ALTEK S.A., Province of Drama – Kavala – Xanthi, Water Development Department Cyprus, Institute of Nuclear Technology & Radiation Protection at NCSR “DEMOKRITOS” and Department of Biomaterials, School of Dentistry, University of Athens, Greece.
  2. “Accreditation of the Environmental Analysis Laboratory”, 2005-2008, Ministry of Development, Antagonistikotita, Project EPAN, 311K€.
  3. 3.”Soil investigations, evaluation of the results and suggestions for the management of Olympic infrastructure at the area of Eliniko airport”, 2002–2003, Services Contract No 2000SM01000024, 47 K€.

Research Facilities

Most of the following instrumentation and equipment have been obtained in the frame of competitive research projects:

  • Illumination apparatus equipped with different filters providing UV-A, visible or solar light  (Qriel 68820 with 1000 W Xe arc lamp, Oriel 68806 Photomax with150W Xe lamp)
  • Liquid phase, continuous flow photochemical reactor
  • Gas phase photochemical reactor
  • Spectrophotometer UV/VIS/NIR (Perkin Elmer Lambda 19)
  • GC equipped with FID, ECD and TCD detectors (Hewlett Packard 5890)
  • HPLC equipped with UV-VIS and FLD detectors (Waters)
  • Gas Chromatograph / Mass spectrometer (GC-MS) (Agilent 6890A-MSD-5973)
  • Liquid chromatograph Triple Quantrapole Mass Spectrometer (LC-MS/MS) (Thermo Electron TSQ Discovery with ESI, APCI and APPI ionization probes)
  • Ion Chromatograph (Metrohm 761IC)
  • Polarographic unit (Metrohm  693VA)
  • Τotal Organic Carbon Analyzer (TOC) (Shimadzu TOC-VCPH)
  • Sample preparation equipment (SPE and SPME devices, ovens, nitrogen evaporator, rotary evaporator, ultrasound bath)
  • Ultra-pure water unit