Photocatalyst couples denitrification and water splitting to manage nitrate pollution
Hydrogen gas generated in situ serves as reducing agent
Researchers in South Korea have developed a solar-powered photocatalytic system that splits water to generate hydrogen gas, which it then uses as a reducing agent to perform denitrification. By generating the hydrogen gas in situ, the system can convert nitrate into dinitrogen without requiring the addition of any other reducing agents.