Akademik Məlumat İdarəetmə Sistemi
Journal of Chemical Technology and Biotechnology, vol.100, no.7, pp.1463-1471, 2025 (SCI-Expanded, Scopus)
Background: There is a great demand for green hydrogen energy due to climate issues and economic pressures globally. Therefore, hydrogen production was achieved by water splitting using a nano-BeO photocatalyst. Results: The hydrogen produced using BeO + H2Oads and nano-BeO + H2Oliq systems was 9.0 × 1016 (at 7 h) and 32.8 × 1016 (at 5 h) molecules g−1 at 300 K. The hydrogen production was optimized by raising the temperature in the BeO + H2Oads system and the maximum hydrogen obtained was 7.0 × 1017 and 8.5 × 1017 molecules g−1 in thermal and radiation–thermal processes at 673 K for 5 h. The ranges of the values of WТ(Н2), WR(Н2) and WRT(Н2) at 373, 473, 573 and 673 K were 2.34 × 1013 to 37.9 × 1013, 8.8 × 1013 to 51.6 × 1013 and 9.22 × 1013 to 79.4 × 1013, respectively. The values of G(H2) at these temperatures were 5.18, 11.3, 23.7 and 32.8 molecules (100 eV)−1, respectively. The effect of γ-radiation on the nano-BeO surface was studied by electron paramagnetic resonance, which showed some localized defects on the volume traps. The concentration of such volume traps was very small, i.e. 4 × 10−2 eV of the total number of traps. Conclusion: Approximately 90–96% of all non-equilibrium carriers formed on the beryllium oxide surface interacted with adsorbed water molecules, responsible for the high catalytic capacity of nano-BeO. The mechanism of water splitting on the nano-BeO surface was developed. Finally, the reported methods are useful for hydrogen production on a large scale. © 2025 Society of Chemical Industry (SCI).