Mo2C-bridged MoOx/N-doped carbon heterojunctions for efficient photodegradation of sulfur hexafluoride

A Mo 2 C-bridged MoO x /N-doped carbon heterostructure (MoO x -Mo 2 C-N@C) synthesized via one-step calcination demonstrates exceptional photocatalytic activity for sulfur hexafluoride (SF 6 ) degradation, achieving a remarkable capacity of 2.12 mmol/g under UV irradiation, tenfold higher than commercial MoO 2 . The enhanced performance originates from synergistic interfacial electronic modulation: Mo 2 C channels create electron-deficient Mo sites that facilitate SF 6 adsorption and S–F bond cleavage, while N-doped carbon matrices promote charge separation and protect active centers against fluorine poisoning. This work presents an effective metal–carbon hybrid strategy for activating super-stable molecules through rational interface engineering.