Solvothermal synthesis and characterization of visible-light-active MoO3/MoS2 heterostructure
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MoO3/MoS2 microspheres were successfully synthesized via one-step solvothermal method. The crystal structure, morphology, and composition of MoO3/MoS2 microspheres were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). And MoO3/MoS2 microspheres exhibited excellent photocatalytic performance in the degradation of methyl orange under visible light irradiation. The photocatalytic degradation rate of MoO3/MoS2 microsphere is 18.5 and 2.5 times of pure MoO3 and MoS2, respectively. The enhanced photocatalytic activity of MoO3/MoS2 should be attributed to the formation of heterojunctions between MoO3 and MoS2 nanosheets, resulting in the effective separation and utilization of the photo-generated charge carries.
KeywordsMoO3 MoS2 Microsphere Visible light Photocatalysis
This work was supported by the National Natural Science Foundation of China (21767009). WDY also gratefully acknowledges the support from China Scholarship Council.
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Conflict of interest
The authors declare that they have no conflict of interest.