Photocatalytic hydrogen production with purification of wastewater from nuclear power plant under irradiation of liquid phase plasma

Liquid phase plasma process was applied in production of hydrogen and purification of wastewater. Ethanolamine released from a nuclear power plant was degraded by photocatalytic decomposition using the liquid phase plasma with perovskite photocatalysts. Eu-doped CaTiO₃ and Eu-doped SrAl₂O₄ perovskites were compared with that of commercial TiO₂ photocatalyst. The photocatalytic decomposition of ethanolamine-contained water induced the degradation of ethanolamine and H₂ evolution, simultaneously. The degradation of ethanolamine and H₂ evolution were elevated on Eu-doped CaTiO₃ perovskite which having less bandgap energy. The rate of H₂ evolution in the ethanolamine-containing water was higher than that in pure water, which was attributed to the additional H₂ evolution by the photo-decomposition of ethanolamine in water.