[Emim]NTF_(2)/MIL-53(Al)复合材料制备及其硫酸羟基氯喹吸附性能探索型实验设计  

Exploratory experimental design for the preparation of[Emim]NTF_(2)/MIL-53(Al)composite and its adsorption performance for hydroxychloroquine sulfate

作　　者：李正杰 刘苗 刘忆贤 房春霞 马喜龙 张志昆[1] 韩继龙 LI Zhengjie;LIU Miao;LIU Yixian;FANG Chunxia;MA Xilong;ZHANG Zhikun;HAN Jilong(College of Chemical and Pharmaceutical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China)

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018

出　　处：《实验技术与管理》2024年第8期66-76,共11页Experimental Technology and Management

基　　金：河北省高等学校科学技术研究项目(QN2022142);河北科技大学教改项目(2022-ZD05)。

摘　　要：该文设计了[Emim]NTF_(2)/MIL-53(Al)复合材料制备及其硫酸羟基氯喹(HCQ)吸附性能探索型实验。采用溶剂热法和浸渍法制备了[Emim]NTF_(2)/MIL-53(Al)复合材料,通过静态吸附法考察了pH值、离子浓度、吸附时间和温度等因素对复合材料HCQ吸附性能的影响,并探讨了吸附机理。实验结果表明,[Emim]NTF_(2)的负载量为20%时,复合材料在20 min的吸附容量可达230.95 mg/g。高吸附容量可归因于材料骨架原子和离子液体与HCQ分子之间的氢键和π-π堆积相互作用。该探索型实验涉及配位化学、物理化学和仪器分析等专业知识,有助于引导学生将专业理论知识与科研前沿相链接,有利于激发学生科研兴趣,扩展学生视野。[Objective]Hydroxychloroquine(HCQ),commonly used as an antimalarial drug and for the treatment of autoimmune diseases,has been detected in surface water and groundwater with low concentrations,posing a significant threat to ecosystems and human health.Therefore,HCQ must be removed from drinking water and wastewater.Among the treatment technologies for HCQ,adsorption has gained considerable attention for its simplicity,low cost,recyclability,and environmental friendliness.However,the relatively low adsorption capacities of reported adsorbents and the long equilibrium time limit their application to the removal of HCQ.Hence,efficient adsorbents with high specific surface areas and adsorption capacities for HCQ must be developed.In this respect,ionic liquids/metal–organic framework(IL/MOF)composites have been regarded as promising adsorbents for organic pollutants because they overcome the disadvantages of ILs and combine the advantages of MOFs and ILs to enhance their adsorption performance for specific pollutants.Hence,this study aimed to evaluate the performance of an IL/MOF composite,namely[Emim]NTF_(2)/MIL-53(Al),for the removal of HCQ from aqueous solutions.[Methods]MIL-53(Al)was prepared using the solvothermal method,and[Emim]NTF_(2)was introduced into the pores of MIL-53(Al)using the incipient wetness impregnation method to prepare[Emim]NTF_(2)/MIL-53(Al)composites with IL loadings of 10%,20%,and 30%.The structural features of MIL-53(Al)and[Emim]NTF_(2)/MIL-53(Al)composites were evaluated.Batch experiments were designed to explore the HCQ removal performance of MIL-53(Al)and[Emim]NTF_(2)/MIL-53(Al)composites.Then,the impacts of operation factors,including the initial pH value,ionic strength,contact time,HCQ concentration,and adsorption temperature,on the adsorption performance of[Emim]NTF_(2)-20%/MIL-53(Al)were determined.Finally,the adsorption mechanism of[Emim]NTF_(2)-20%/MIL-53(Al)toward HCQ was discussed.[Results]The introduced[Emim]NTF_(2)greatly enhanced the HCQ adsorption capacities of MIL-53(Al)and

关 键 词：金属-有机骨架材料 离子液体 复合材料 吸附 硫酸羟基氯喹 

分 类 号：X52[环境科学与工程—环境工程]