Modulating the PCET process optimizing the local microenvironment of a CdS@NiV-LDH heterojunction for CO reduction in tunable green syngas photosynthesis.

Photoconversion of CO and HO into syngas (CO + H) for the Fischer-Tropsch reaction is considered a feasible plan to address global energy requirements in times of global warming. However, the production of syngas with high activity and adjustable proportion is challenging mainly due to the less efficient multi-step proton-coupled electron transfer (PCET) process owing to the unfavorable local microenvironment of photocatalysts. Herein, an S-scheme CdS@NiV-LDH (HNV) heterojunction is constructed through mild wet-chemistry methods, and NiV-LDH nanosheets are uniformly grown on the surface of hollow cubic CdS (HCC).