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.

Key words: metal organic frameworks, adsorption, 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）。

关键词: 金属有机骨架材料, 吸附, 亚硝酸盐氮

CLC Number: 

• X703.1