1. New Technologies-Research Centre, University of West Bohemia, Univerzitni 8, 306 14 Pilsen, Czech Republic
2. Center of Excellence Geopolymer and Green Technology, School of Material Engineering, University Malaysia Perlis, 01007 Kangar, Perlis, Malaysia
3. Department of Inorganic and Physical Chemistry, Lesya Ukrainka Eastern European National University, Voli Av. 13, 43025 Lutsk, Ukraine
4. Department of Physics, Lesya Ukrainka Eastern European National University, Voli Av. 13, 43025 Lutsk, Ukraine
5. Department of Physics and Astronomy, King Saud University, Riyadh 11451, Saudi Arabia
6. Department of Instrumentation and Control Engineering, Faculty of Mechanical Engineering, CTU in Prague, Technicka 4, 166 07 Prague 6, Czech Republic