Abstract
A series of Zn(FexGa1‐x)2O4 solid solutions were synthesized by using a sol‐gel method, and their photocatalytic CO2 reduction performance was investigated under simulated solar‐light irradiation. The content ratio of Fe3+ and Ga3+ not only greatly determined the light‐harvesting capability of Zn(FexGa1‐x)2O4 in the ultraviolet and visible‐light regions, but also regulated the positions of the VB‐top and CB‐bottom potentials, ultimately greatly affecting the photocatalytic capabilities. ZnFe0.1Ga1.9O4, the optimum Fe3+ content isomorphism presented the maximum CH4 formation rate of 6.1 µmol/h at 30 °C among the Zn(FexGa1‐x)2O4 solid solutions.
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