Over the past two decades, removing water pollutants through catalysis has gained momentum. Researchers from Rice University have evolved a new catalyst that can convert polluted water containing harmful nitrite pollutant waste into valuable chemicals such as ammonia. Ammonia is used for several purposes such as fertilizers and household cleaners, as well as rocket fuel. Moreover, Ammonia has been considered as a carbon-free liquid fuel and could play a crucial role to address climate change. Researchers are now exploring new ways to make other useful chemicals from nitrite contaminated water.