Modulating the local electron density at built-in interface iron single sites in Fe-CN/MoO heterostructure for enhanced CO reduction to CH and photo-Fenton reaction.

The catalytic efficiency of heterogeneous photocatalytic CO reduction and photo-Fenton HO activationisclosely related to the local electron density of reaction center atoms. However, electron-hole recombination from random charge transfer significantly restricts the targeted electron delivery to the active center. Herein, Fe-CN/MoO heterojunction with interfacial coordination of atomically dispersed Fe-N sites with the O interface of MoO was synthesized by simple hydrothermal method.