Richard Dvorsky, Ph.D., is a professor at the Nanotechnology Centre - CEET and senior researcher at the IT4Innovations National Supercomputing Center of VŠB-Technical University of Ostrava, Czech Republic, and Head of the Laboratory of Nanoparticular Materials. His scientific research includes interaction of nanoparticle systems and their self-organization, preparation and characterization of functionalized nanocomposites with a high sorption surface for degradation of toxins and pollutants, preparation of sorption nanomaterials with continuous photocatalytic reactivation, research of electroactivity of nanofibers and development of electroactive filter nanomaterials, and nanodesintegration of microparticles by high-energy water jet and cavitation. Ladislav Svoboda, Ph.D., is a researcher at the Nanotechnology Centre - CEET and at the IT4Innovations National Supercomputing Center of the VŠB - Technical University of Ostrava, Czech Republic. With a strong background in analytical chemistry and process engineering, he specializes in heterogeneous photocatalysis, nanomaterials synthesis, graphitic carbon nitride-based nanomaterials, physico-chemical properties of nanostructured photocatalysts and kinetics and mechanisms of photochemical reactions. Jiří Bednář, Ph.D., is a researcher at the Nanotechnology Centre - CEET and at the IT4Innovations National Supercomputing Center of the VŠB - Technical University of Ostrava, Czech Republic. His scientific research includes preparation and characterization of nanostructured photocatalysts, testing and evaluation of photocatalytic activity and development of fiber filters for respirators with photocatalytic regeneration.