MoS_(2)的制备及其超声催化性能  

Preparation and Ultrasonic Catalytic Performance of MoS_(2)

作　　者：马占营[1] 王钰 兰月丽 全华清 MA Zhanying;WANG Yu;LAN Yueli;QUAN Huaqing(School of Chemistry&Chemical Engineering,Xianyang Normal University,Xianyang 712000,Shaanxi,China)

机构地区：[1]咸阳师范学院化学与化工学院,陕西咸阳712000

出　　处：《咸阳师范学院学报》2024年第2期20-24,共5页Journal of Xianyang Normal University

基　　金：陕西省科技发展计划重点研发计划项目(2023-YBSF-595);国家级大学生创新创业训练计划项目(202310722057)。

摘　　要：以钼酸钠和硫脲为原料,用水热法制备了系列MoS_(2)催化剂,采用XRD、SEM、TEM等技术,对MoS_(2)催化剂的晶相结构及表面形貌尺寸等进行了表征,以染料亚甲基蓝探究了MoS_(2)样品的超声催化性能。结果表明,所得MoS_(2)催化剂粒径分布范围为0.5~5μm,当钼酸钠与硫脲摩尔比小于等于1∶9时,所得MoS_(2)样品具有六方晶相结构及结晶度相对较好;超声催化实验结果表明,钼硫摩尔比为1∶3时,所得MoS_(2)的超声催化性能最佳,超声12 min时,对亚甲基蓝的降解率可达94.08%。A series of MoS_(2) 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 MoS_(2) catalysts were characterized by XRD,SEM and TEM techniques.The ultrasonic catalytic performance of MoS_(2) samples was investigated by the degradation of methylene blue.The results showed that the particle size distribution range of the obtained MoS catalyst was 0.5~5μm.When the molar ratio of sodium molybdate to thiourea is less than or equal to 1∶7,the obtained MoS_(2) sample exhibited hexagonal phase structure and the crystallinity was relatively good.The results of ultrasonic catalysis demonstrated that when the molar ratio of sodium molybdate to thiourea was 1∶3,the obtained MoS_(2) catalyst showed the best ultrasonic catalytic activity which could degrade 94.08%of methylene blue within 12 min.

关 键 词：二硫化钼 超声催化 制备 水热法 

分 类 号：O641.61[理学—物理化学]