Facile synthesis of multi-layer Co(OH)/CeO-g-CN ternary synergistic heterostructure for efficient photocatalytic oxidation of NO under visible light.

In this work, we report a one-step synthesis of ternary Z-scheme Co(OH)/CeO-g-CN (CoCe-CN) heterostructure via hydrothermal method. Owing to the modification of Co(OH) and CeO, the existence of Co(OH) as an electron acceptor-donor center between CeO and g-CN accelerates the electron transfer and provides extra OH reaction pathway for photocatalytic oxidation of NO. As a result, 50CoCe-CN (Co and Ce accounting for 25% mass ratio separately) achieved a 53.