Fotios K. Katsaros graduated from the NKUA (Athens), obtaining a degree in Chemistry (1991). He then joined the Institute of Physical Chemistry, National Center of Scientific Research “Demokritos” (NCSR “Demokritos”) as a Research Fellow. He was awarded a Ph.D. Scholarship (1993) and received his Ph.D. by NKUA (2000). After completing his studies, he worked as a Researcher (by contract) of the Materials and Membranes for Environmental Separations Laboratory at the Institute of Physical Chemistry, NCSR “Demokritos”. During the period of 2001–2006, he was a Permanent Scientist in Demokritos. In 2006, he was elected as a Researcher in the Institute of Physical Chemistry, NCSR “Demokritos”. Since 2015, he has been the Research Director in the “Materials and Membranes for Environmental Separations” Laboratory of the Institute of Nanoscience and Nanotechnology. His current research interests focus on the synthesis and characterization of nanoporous materials; design and development of nanoparticles; and preparation of adsorbents, catalysts/phototocatalysts and nanofillers for environmental applications, energy storage and conversion.