Abstract:

Nitrogen is the main component of air and an important element for various organic compounds. Nitrogen-containing molecules are indispensable to both life and industry. It is still a long-term task for chemists to develop energy-saving and efficient nitrogen fixation methods. Nitrogen oxide and nitrogen dioxide are notorious molecules causing air pollution. Controlling the emission of nitrogen oxides is an important way to control air pollution. Nitrogen-containing biomolecules such as amino acids and proteins are vital nutrient and executors for numerous life events. Other synthetic nitrogen-containing polymers, like Nylon, are important and useful materials in our daily life.

Key words: Nitrogen cycle, Nitrogen fixation, Nitrogen oxide, Polypeptide