Process design, adsorbents/membranes, gas separation, water purification, gas to liquid conversion


Research Interests: nanoporous materials and membranes, adsorption and separation in the gaseous and liquid phase, photocatalysis.

Dr. G. E. Romanos is member of the Institute’s program “Nanochemistry and Nanomaterials” and principal member of the Lab “Membranes and Materials for Environmental Separations” at the Institute of Nanoscience and Nanotechnology of NCSR “Demokritos” (Group of 22 scientists). 

• Intense research activity in the domains of nanotechnology, environment and energy, with significant contribution in the development of advanced and novel materials, solvents (Ionic Liquids) and technologies for the capture of CO2. 
• Focus on the development of ultrathin layered, photocatalytic membranes (photocatalysis and processes), photoelectrochemical processes for the conversion of CO2 to fuels, processes for the capture of CO2 based on solid and liquid adsorbents. Large experience in functional nanocomposite materials (polymeric membranes with carbon nanotube and graphene based fillers for gas separation and desalination).


Theodorakopoulos, G.V., Romanos, G.E., Katsaros, F.K., Papageorgiou, S.K., Kontos, A.G., Spyrou, K., Beazi-Katsioti, M. and Falaras, P., Structuring efficient photocatalysts into bespoke fiber shaped systems for applied water treatment Chemosphere, Volume 277, Article Number: 130253, 2021 [doi]

Thomou, E., Sakavitsi, V., Angeli, G.K., Spyrou, K., Froudas, K.G., Diamanti, E.K., Romanos, G.E., Karanikolos, G.N., Trikalitis, P.N., Gournis, D. and Rudolf, P., A diamino-functionalized silsesquioxane pillared graphene oxide for CO2capture RSC Advances, Volume 11, Pages: 13743-13750, 2021 [doi]

Singh, S., Varghese, A.M., Reddy, K.S.K., Romanos, G.E. and Karanikolos, G.N., Polysulfone Mixed-Matrix Membranes Comprising Poly(ethylene glycol)-Grafted Carbon Nanotubes: Mechanical Properties and CO2Separation Performance Industrial and Engineering Chemistry Research, Volume 60, Pages: 11289-11308, 2021 [doi]

Karanikolos, G.N., Romanos, G.E. and Vega, L.F., Editorial: Chemical Modification of Adsorbents for Enhanced Carbon Capture Performance Frontiers in Chemistry, Volume 9, Article Number: 657669, 2021 [doi]

Kontos, A.G., Romanos, G.E., Veziri, C.M., Gotzias, A., Arfanis, M.K., Kouvelos, E., Likodimos, V., Karanikolos, G.N. and Falaras, P., Correlating vibrational properties with temperature and pressure dependent CO2 adsorption in zeolitic imidazolate frameworks Applied Surface Science, Volume 529, Article Number: 147058, 2020 [doi]

Gkoura, L., Diamantopoulos, G., Fardis, M., Homouz, D., Alhassan, S., Beazi-Katsioti, M., Karagianni, M., Anastasiou, A., Romanos, G., Hassan, J. and Papavassiliou, G., The peculiar size and temperature dependence of water diffusion in carbon nanotubes studied with 2D NMR diffusion-relaxation D-T 2 effspectroscopy Biomicrofluidics, Volume 14, Article Number: 0005398, 2020 [doi]

Ibrahim, I., Belessiotis, G.V., Arfanis, M.K., Athanasekou, C., Philippopoulos, A.I., Mitsopoulou, C.A., Romanos, G.E. and Falaras, P., Surfactant effects on the synthesis of redox bifunctional v2o5 photocatalysts Materials, Volume 13, Pages: 1-13, Article Number: 4665, 2020 [doi]

Vayenos, D., Romanos, G.E., Papageorgiou, G.C. and Stamatakis, K., Synechococcus elongatus PCC7942: a cyanobacterium cell factory for producing useful chemicals and fuels under abiotic stress conditions Photosynthesis Research, Volume 146, Pages: 235-245, 2020 [doi]

Balis, E., Sapalidis, A., Pilatos, G., Kouvelos, E., Athanasekou, C., Veziri, C., Boutikos, P., Beltsios, K.G. and Romanos, G., Enhancement of vapor flux and salt rejection efficiency induced by low cost-high purity MWCNTs in upscaled PVDF and PVDF-HFP hollow fiber modules for membrane distillation Separation and Purification Technology, Volume 224, Pages: 163-179, 2019 [doi]

Filatzikioti, A, Glezos, N, Kantarelou, V, Kyriakis, A, Pilatos, G, Romanos, G, Speliotis, T and Stathopoulou, DJ, Carbon nanotube Schottky type photodetectors for UV applications Solid-State Electronics, Pergamon, Volume 151, Pages: 27–35, 2019 [doi]

Diamantopoulou, A., Sakellis, E., Romanos, G.E., Gardelis, S., Ioannidis, N., Boukos, N., Falaras, P. and Likodimos, V., Titania photonic crystal photocatalysts functionalized by graphene oxide nanocolloids Applied Catalysis B: Environmental, Volume 240, Pages: 277-290, 2019 [doi]

Athanasekou, C., Sapalidis, A., Katris, I., Savopoulou, E., Beltsios, K., Tsoufis, T., Kaltzoglou, A., Falaras, P., Bounos, G., Antoniou, M., Boutikos, P. and Romanos, G.E., Mixed Matrix PVDF/Graphene and Composite-Skin PVDF/Graphene Oxide Membranes Applied in Membrane Distillation Polymer Engineering and Science, Volume 59, Pages: E262-E278, 2019 [doi]

Skip to content