Abstract
In order to enhance the interfacial coupling of heterojunctions, Cu2MoS4/CdS heterojunction was constructed by solvothermal method and sulfurizing CdIF and the crystal structure, microstructure and photoelectric properties of the material were characterized. The results showed that CdS was homogeneously loaded on the surface of Cu2MoS4, the absorption of the composite material in the visible light region was significantly enhanced, and the recombination rate of photogenerated carriers was obviously reduced. The research showed the best photocatalytic hydrogen evolution performance When the addition amount of Cu2MoS4 is 0.10 mmol, the best photocatalytic hydrogen evolution performance is 10.03 mmol/h/g, which was 21.45 times higher than that of pure CdS. The improved performance is mainly due to the highly dispersed loading of CdS on the surface of Cu2MoS4, which organically combines to build a heterogeneous interface with close contact, enhancing the separation efficiency of photogenerated holes and carriers, while suppressing the photocorrosion of Cu2MoS4 and maintaining the long-term stability of hydrogen evolution performance to achieve high-efficiency hydrogen evolution.
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