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Ionic Liquid-Functionalized Magnetic Metal–Organic Framework Nanocomposites for Efficient Extraction and Sensitive Detection of Fluoroquinolone Antibiotics in Environmental Water
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-01-20 , DOI: 10.1021/acsami.0c17310 Dingkun Lu 1, 2 , Menghan Qin 1, 2 , Chang Liu 1, 2 , Jingjing Deng 1, 2 , Guoyue Shi 3 , Tianshu Zhou 1, 2
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-01-20 , DOI: 10.1021/acsami.0c17310 Dingkun Lu 1, 2 , Menghan Qin 1, 2 , Chang Liu 1, 2 , Jingjing Deng 1, 2 , Guoyue Shi 3 , Tianshu Zhou 1, 2
Affiliation
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Herein, the hydrophobic carboxyl-functionalized ionic liquid (IL-COOH) was encapsulated into the prepared Fe3O4@Zr-MOFs, and the novel water-stable IL-COOH/Fe3O4@Zr-MOF nanocomposites were first synthesized. The polydopamine-functionalized Fe3O4 was introduced to construct the core–shell structure via layer-by-layer modification, and the controlled growth of Zr-MOFs was achieved, which realized the adjustment of charged properties of nanocomposites and simplified the adsorption or extraction process. The IL-COOH/Fe3O4@Zr-MOFs were fully studied by IR, HNMR, XRD, N2 adsorption–desorption isotherms, TEM, EDS mapping, VSM, and so on. Then, they were employed for the selective adsorption and detection of fluoroquinolone antibiotics (FQs). The adsorption isotherms and kinetics demonstrated that the adsorption process followed a pseudo-second-order kinetic model and the Langmuir isotherm model. Among them, IL-COOH/Fe3O4@UiO-67-bpydc showed the best adsorption performance, and the maximum adsorption capacity of ofloxacin was 438.5 mg g–1. Coupled magnetic solid-phase extraction with HPLC-DAD, a convenient, sensitive, and efficient method for extraction and detection of FQs in environmental water, was developed based on IL-COOH/Fe3O4@UiO-67-bpydc. The recoveries of environmental water were ranging from 90.0 to 110.0%, and the detection limits were lower than 0.02 μg L–1. The novel functionalized composites served as solid-phase adsorbents and liquid-phase extractants. This study also provided a promising strategy for designing and preparing multi-functionalized nanocomposites for the removal or detection of pollutants in environmental samples.
中文翻译：
离子液体功能化磁性金属-有机骨架纳米复合材料，可有效萃取和灵敏检测环境水中的氟喹诺酮类抗生素
在此，将疏水性羧基官能化的离子液体（IL-COOH）封装在制备的Fe 3 O 4 @ Zr-MOFs中，首先合成了新型的水稳定性IL-COOH / Fe 3 O 4 @ Zr-MOF纳米复合材料。 。引入了聚多巴胺官能化的Fe 3 O 4，通过逐层修饰来构建核-壳结构，并实现了Zr-MOF的受控生长，从而实现了纳米复合材料带电性能的调整，简化了吸附或吸附过程。提取过程。通过IR，HNMR，XRD，N 2对IL-COOH / Fe 3 O 4 @ Zr-MOFs进行了充分研究。吸附-解吸等温线，TEM，EDS映射，VSM等。然后，将它们用于选择性吸附和检测氟喹诺酮抗生素（FQs）。吸附等温线和动力学表明，吸附过程遵循伪二级动力学模型和Langmuir等温线模型。其中，IL-COOH / Fe 3 O 4 @ UiO-67-bpydc表现出最佳的吸附性能，氧氟沙星的最大吸附容量为438.5 mg g –1。基于IL-COOH / Fe 3 O 4，开发了磁性固相萃取-HPLC-DAD的简便，灵敏，高效的环境水中FQ的提取和检测方法。@ UiO-67-bpydc。环境水的回收率为90.0％至110.0％，检出限低于0.02μgL –1。新型功能化复合材料可作为固相吸附剂和液相萃取剂。这项研究还为设计和制备用于去除或检测环境样品中污染物的多功能纳米复合材料提供了有希望的策略。
更新日期：2021-02-03
中文翻译：
离子液体功能化磁性金属-有机骨架纳米复合材料，可有效萃取和灵敏检测环境水中的氟喹诺酮类抗生素
在此，将疏水性羧基官能化的离子液体（IL-COOH）封装在制备的Fe 3 O 4 @ Zr-MOFs中，首先合成了新型的水稳定性IL-COOH / Fe 3 O 4 @ Zr-MOF纳米复合材料。 。引入了聚多巴胺官能化的Fe 3 O 4，通过逐层修饰来构建核-壳结构，并实现了Zr-MOF的受控生长，从而实现了纳米复合材料带电性能的调整，简化了吸附或吸附过程。提取过程。通过IR，HNMR，XRD，N 2对IL-COOH / Fe 3 O 4 @ Zr-MOFs进行了充分研究。吸附-解吸等温线，TEM，EDS映射，VSM等。然后，将它们用于选择性吸附和检测氟喹诺酮抗生素（FQs）。吸附等温线和动力学表明，吸附过程遵循伪二级动力学模型和Langmuir等温线模型。其中，IL-COOH / Fe 3 O 4 @ UiO-67-bpydc表现出最佳的吸附性能，氧氟沙星的最大吸附容量为438.5 mg g –1。基于IL-COOH / Fe 3 O 4，开发了磁性固相萃取-HPLC-DAD的简便，灵敏，高效的环境水中FQ的提取和检测方法。@ UiO-67-bpydc。环境水的回收率为90.0％至110.0％，检出限低于0.02μgL –1。新型功能化复合材料可作为固相吸附剂和液相萃取剂。这项研究还为设计和制备用于去除或检测环境样品中污染物的多功能纳米复合材料提供了有希望的策略。
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