ZnIn2S4/CaIn2S4 photocatalysts for photocatalytic degradation of methyl orange under visible light
ZnIn2S4/CaIn2S4(ZIS/CIS)photocatalysts were prepared by one-step hydrothermal method.The crystal structure,morphology and optical properties of the heterojunction photocatalysts were characterized by XRD,SEM,DRS and electrochemical tests,and the separation efficiency of the photogenerated carriers was investigated.The degradation efficiency of methyl orange(MO)was investigated under simulated visible light.The experimental results showed that the degradation efficiency of MO by ZIS/CIS heterojunction materials was significantly better than that of CIS and ZIS,respectively.The composite sample with ZIS of 30％mole fraction had the best degradation efficiency of MO which reached 95.54％within 60 min,and had good stability.
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