1. Hephaestus Laboratory, Department of Petroleum and Mechanical Engineering, Eastern Macedonia and Thrace Institute of Technology, St. Lucas, 654 04 Kavala, Greece
2. Faculty of Chemistry, Division of Chemical Technology, Aristotle University of Thessaloniki, University Box 116, 54124 Thessaloniki, Greece
3. Membranes and Materials for Environmental Separations Laboratory, Institute of Nanoscience and Nanotechnology, NCSR “Demokritos” Ag. Paraskevi, Attica 153 41, Greece