Preparation and Ultrasonic Catalytic Performance of MoS2
A series of MoS2 were prepared by hydrothermal method using sodium molybdate and thiourea as raw materials.The crystal phase structure,morphology size and elemental composition of the obtained MoS2 catalysts were characterized by XRD,SEM and TEM techniques.The ultrasonic cat-alytic performance of MoS2 samples was investigated by the degradation of methylene blue.The results showed that the particle size distribution range of the obtained MoS catalyst was 0.5～5 μm.When the molar ratio of sodium molybdate to thiourea is less than or equal to 1∶7,the obtained MoS2 sample ex-hibited hexagonal phase structure and the crystallinity was relatively good.The results of ultrasonic ca-talysis demonstrated that when the molar ratio of sodium molybdate to thiourea was 1∶3,the obtained MoS2 catalyst showed the best ultrasonic catalytic activity which could degrade 94.08％of methylene blue within 12 min.
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