The photocatalytic •OH production activity of g-C3N4 improved by the introduction of NO

The efficiency of photocatalytic pollutant removal largely depends on the ability of the photocatalytic system to produce hydroxyl radicals (^?OH). However, the capability of photocatalyst to produce ^?OH is not strong at present. Advancing the capacity of photocatalytic system to produce ^?OH has always been a tough problem and challenge in the field of environmental science. In this research, it was found that introducing nitric oxide (NO) into the graphitic carbon nitride (g-C₃N₄) photocatalytic system could memorably enhance the ability of producing ^?OH group. This study provides a new idea for improving the capacity of photocatalytic ^?OH production.