β-FeSe nanorods composited g-C₃N₄ with enhanced photocatalytic efficiency

A series of β-FeSe nanorods composited g-C₃N₄ were prepared. The structure, morphology, chemical state, photocatalytic activity, electrochemical impedance and photoluminescence of β-FeSe/g-C₃N₄ composites were well characterized. It is found that the decolourization rate of 3 wt% β-FeSe/g-C₃N₄ composites reaches 4.4 times than that of g-C₃N₄. The improved photocatalytic properties could be ascribed to the reduced recombination of photogenerated electrons and holes, which is derived from the excellent ability of β-FeSe to capture and transfer electrons. This work provides an alternative co-catalyst for decolourizing organic matter.