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MIL-101的制备与吸附水中亚硝酸盐氮研究
Preparation of MIL-101 and their adsorption capacities of nitrite nitrogen
【摘要】 通过溶剂热法制备金属有机骨架材料(MOFs)MIL-101(Fe)和MIL-101(Fe)-NH2,并通过X射线衍射(XRD)、傅里叶红外光谱(FT-IR)、扫描电镜(SEM)进行表征。以水中的亚硝酸盐氮(NO2--N)为目标物,研究2种材料对其的吸附作用。结果表明,2种材料对NO2--N的吸附符合准二级动力学和Langmuir等温吸附模型,吸附平衡时间为5 h。由于氨基的存在,MIL-101(Fe)-NH2的吸附能力略优于MIL-101(Fe)。
【Abstract】 The metal organic frameworks(MOFs) materials,MIL-101(Fe) and MIL-101(Fe)-NH2,were prepared by the solvothermal method and characterized by XRD,FT-IR,and SEM. Then the adsorption effects of the MIL-101(Fe)and MIL-101(Fe)-NH2 on nitrite nitrogen were investigated. The results show that the adsorption kinetics of these two materials accords with the pseudo-second-order kinetics and Langmuir isotherm model. Besides,the time for adsorption equilibrium of nitrite nitrogen is 5 h. The adsorption capacity of MIL-101(Fe)-NH2 is slightly better than MIL-101(Fe) due to the presence of amidogen.
- 【文献出处】 工业水处理 ,Industrial Water Treatment , 编辑部邮箱 ,2019年09期
- 【分类号】X703.1
- 【被引频次】4
- 【下载频次】321