Novel honeycomb-like Ni-MOF enhanced hierarchical Bi2MoO6 microspheres for high efficient photocatalytic CO2 reduction

Photocatalytic reduction of CO2 to CH4 and CO not only can utilize clean solar energy, but also can achieve CO2 emission reduction and resource regeneration. In this paper, Ni-MOF/Bi2MoO6 composite photocatalysts were prepared by in situ synthesis, and characterized and evaluated by XRD, SEM, TEM, XPS, BET, electrochemistry and CO2 reduction experiments. The experimental results show that the rate of CH4 and CO production with 0.04Ni-MOF/BMO photocatalyst is 10.27 μmol/g/h and 66.34 μmol/g/h respectively, which 1.89 times and 8.64 times than that of pure BMO. It improves the photocatalytic performance by providing more reaction sites for CO2. Metal organic framework and BMO are used as efficient photocatalysts for carbon dioxide reduction, providing a new idea for the preparation of new materials for energy conservation and emission reduction.