磁性金属有机骨架材料FeMPC的制备及其吸附性能研究  

Preparation and Adsorption Properties of Magnetic Metal-organic Framework Material FeMPC

作　　者：唐祝兴[1] 宋宏权 张岐龙 董华 TANG Zhuxing;SONG Hongquan;ZHANG Qilong;DONG Hua(Shenyang Ligong University,Shenyang 110159,China;Northwest Industries Group Co.,Ltd.,Xi'an 710043,China)

机构地区：[1]沈阳理工大学环境与化学工程学院,沈阳110159 [2]西北工业集团有限公司,西安710043

出　　处：《沈阳理工大学学报》2024年第1期83-90,共8页Journal of Shenyang Ligong University

基　　金：辽宁省教育厅高等学校基本科研项目(LJKZ0234)。

摘　　要：首先采用水热合成法制备金属有机骨架材料MIL-101(Fe),然后通过煅烧MIL-101(Fe)制备磁性金属有机骨架材料FeMPC,并用于吸附染料废水中的亚甲基蓝。使用扫描电镜、透射电镜、红外光谱等对制备的材料进行表征,考察FeMPC用量、振荡时间、pH等因素对吸附性能的影响。实验结果表明:当FeMPC用量为25 mg、振荡时间为70 min、溶液pH为8时,FeMPC对亚甲基蓝的吸附效果较好,吸附量为15.24 mg/g,吸附率为84.69%,材料重复使用次数不超过5次时能保持一定的吸附效果;FeMPC对亚甲基蓝的等温吸附符合Langmuir模型,吸附过程符合准二级动力学模型,属于化学吸附。Firstly,the metal-organic framework material MIL-101(Fe)was prepared by hydrothermal synthesis method,and then the magnetic metal-organic framework material FeMPC was prepared by calcining MIL-101(Fe),and was used to adsorb methylene blue in dye wastewater.The materials were characterized by scanning electron microscopy,transmission electron microscopy and infrared spectroscopy,and the effects of the amount of material,oscillation time and pH on the adsorption properties of the materials were investigated.The experimental results show that when FeMPC dosage is 25 mg,oscillation time is 70 min,solution pH is 8,FeMPC has a good adsorption effect on methylene blue,the adsorption amount is 15.24 mg/g,the adsorption rate is 84.69%,and the adsorption effect can be maintained when the material is reused no more than 5 times.The isothermal adsorption of methylene blue by FeMPC conforms to the Langmuir adsorption model,and the adsorption process conforms to the quasi-second-order kinetic model,which belongs to chemisorption.

关 键 词：磁性金属有机骨架材料 MIL-101(Fe) FeMPC 亚甲基蓝 吸附 

分 类 号：TQ424[化学工程] X703[环境科学与工程—环境工程]