Preparation of ZnIn2S4 by Hydrothermal Method and its Performance in Visible Light Degradation of Tetracycline
A petal-like photocatalyst ZnIn2S4,was prepared by the hydrothermal method.The samples were characterized by XRD,SEM,EDS and XPS analysis,confirming the successful synthesis of pure ZnIn2S4 samples in the form of petal-like microspheres with chemical valence states of Zn2+ ,In3+ and S2-.Under visible light,the degradation efficiency of ZnIn2S4 photocatalytic material on tetracycline was studied under different precursor pH values,hydrothermal reaction times and synthesis temperatures.The results showed that the petal-like ZnIn2S4 sample synthesized at 160 ℃ without adjusting the pH value and with a holding time of 12 hours exhibited the optimal degradation performance towards tetracycline,with a degradation efficiency of 76.30％.
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