二硫化钼磁性纳米复合材料的制备及其对水体中偶氮染料的吸附性能研究  

Preparation of Molybdenum Disulfide Magnetic Nanocomposites and Their Adsorption Properties for Azo Dyes in Water

作　　者：向文峻 于京 马即同 丁志平 谢家伟 牛琛 Xiang Wenjun;Yu Jing;Ma Jitong;Ding Zhiping;Xie Jiawei;Niu Chen(College of Chemical Engineering,Northwest University for Nationalities,Gansu,730124)

机构地区：[1]西北民族大学化工学院

出　　处：《当代化工研究》2020年第4期133-134,共2页Modern Chemical Research

基　　金：2019年西北民族大学本科生科研创新项目(XBMU-BYL19041)

摘　　要：利用二硫化钼表面及内部高度发达的孔隙结构,以钼酸钠为钼源,L-半胱氨酸为硫源,同时加入氧化石墨烯和磁性四氧化三铁,通过一步水热法制备出二硫化钼磁性纳米复合材料。并研究了二硫化钼磁性纳米复合材料对水体中偶氮染料的吸附效果。实验表明:吸附温度为25℃时,当二硫化钼磁性纳米复合材料的投放量为300mg/L,其对亚甲基蓝的吸附时间为30min,染料废水溶液PH值为8.0时,二硫化钼磁性纳米复合材料对亚甲基蓝的吸附率可达94.6%;对刚果红的吸附时间为70min,染料废水溶液PH值为6.0时,二硫化钼磁性纳米复合材料对刚果红的吸附率可达61.6%。当二硫化钼磁性纳米复合材料的投放量为400mg/L,其对甲基橙的吸附时间为70min,染料废水溶液PH值为7.0时,二硫化钼磁性纳米复合材料对甲基橙的吸附率可达23.4%。Using the highly developed pore structure on the surface and inside of molybdenum disulfide,this paper uses sodium molybdate as molybdenum source,L-cysteine as sulfur source,and adds graphene oxide and magnetic ferroferric oxide to prepare molybdenum disulfide magnetic nanocomposites by one-step hydrothermal method.The adsorption effect of molybdenum disulfide magnetic nanocomposites on azo dyes in water was also studied.The experiment shows that when the adsorption temperature is 25℃ and when the dosage of molybdenum disulfide magnetic nanocomposite is 300mg/L,the adsorption time for methylene blue is 30min.When the PH value of dye wastewater solution is 8.0,the adsorption rate of methylene blue by molybdenum disulfide magnetic nanocomposite can reach 94.6%.When the adsorption time for Congo red is 70min and the PH value of dye wastewater solution is 6.0,the adsorption rate of Congo red by molybdenum disulfide magnetic nanocomposite can reach 61.6%.When the dosage of molybdenum disulfide magnetic nanocomposite is 400mg/L,its adsorption time for methyl orange is 70min,and the PH value of dye wastewater solution is 7.0,the adsorption rate of methyl orange by molybdenum disulfide magnetic nanocomposite can reach 23.4%.

关 键 词：苯佐卡因 合成 药物 对硝基苯甲酸 

分 类 号：T[一般工业技术]