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Cationic metal-organic frameworks as an efficient adsorbent for the removal of 2,4-dichlorophenoxyacetic acid from aqueous solutions

文献类型：期刊论文

作者Wu, Gege5; Ma, Jiping5; Li, Shuang5; Wang, Shasha5; Jiang, Bo5; Luo, Siyi5; Li, Jinhua1,4; Wang, Xiaoyan3,4; Guan, Yafeng2; Chen, Lingxin1,3,4
刊名ENVIRONMENTAL RESEARCH
出版日期2020-07-01
卷号186页码:9
关键词Ion exchange Metal-organic frameworks (MOFs) 2,4-Dichlorophenoxyacetic acid (2,4-D) Adsorptive removal Water sample
ISSN号0013-9351
DOI10.1016/j.envres.2020.109542
通讯作者Ma, Jiping(majiping2012@163.com) ; Chen, Lingxin(lxchen@yic.ac.cn)
英文摘要Metal-organic frameworks (MOFs) material with high surface area, good chemical stability and multi-functionality, has become an emerging adsorbent for water treatment. A novel kind of quaternary amine anionicexchange MOFs UiO-66 namely UiO-66-NMe3+ was firstly synthesized for adsorptive removal of a widely used toxic herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) from aqueous solutions. The well-prepared UiO-66-Me-3(+) MOFs were fully characterized, and then the main parameters affecting the adsorption process including solution pH, adsorbent dosage and coexisting anions were systematically investigated. The maximum adsorption capacity of UiO-66-NMe3+ toward 2,4-D reached as high as 279 mg g(-1), much higher than that of pristine UiO-6 and aminated UiO-66. The adsorption mechanism could be attributed to the electrostatic interactions efficiently enhanced by the functionalization of quaternary amine groups, combining with the p-p conjugations between the linkers in MOFs and 2,4-D molecules, leading to the better adsorption performance of UiO-66-Me-3(+). Additionally, the UiO-66-NMe3+ could be well regenerated by simple solvent washing and exhibited a slight decline of adsorption capacity after seven successive recycle. Furthermore, satisfactory adsorption capacity and reusability of the MOFs in environmental water samples were attained. Comparing with reported activated carbon and resin materials, the UiO-66-NMe3+ MOFs possessed higher adsorption capacity and shorter equilibrium time, as well as good reusability and practicality. The developed ion-exchange functionalized MOFs provided an ideal alternative for efficient adsorptive-removal of 2,4-D from complicated aqueous environment.
WOS关键词SOLID-PHASE MICROEXTRACTION ; ADSORPTIVE REMOVAL ; FLUOROQUINOLONE ANTIBIOTICS ; ACTIVATED CARBON ; WATER STABILITY ; EXTRACTION ; 2,4-D ; MOF ; PESTICIDES ; UIO-66-NH2
资助项目National Natural Science Foundation of China[21976099] ; National Natural Science Foundation of China[21876199] ; National Natural Science Foundation of China[21804010] ; Natural Science Foundation of Shandong Province of China[ZR2019MB046] ; Qingdao Science and Technology Program of China[17-3-3-77nsh] ; Department of Science and Technology of Shandong Province of China[GG201709290055] ; Science and Technology Development Plan of Yantai[2017ZH093] ; Research Initiation Fund of Binzhou Medical University[BY2019KYQD39] ; Taishan Scholar Project Special Fund[ts20190962]
WOS研究方向Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
语种英语
WOS记录号WOS:000548186300072
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province of China ; Qingdao Science and Technology Program of China ; Department of Science and Technology of Shandong Province of China ; Science and Technology Development Plan of Yantai ; Research Initiation Fund of Binzhou Medical University ; Taishan Scholar Project Special Fund
源URL[http://ir.yic.ac.cn/handle/133337/28610]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_山东省海岸带环境工程技术研究中心
通讯作者Ma, Jiping; Chen, Lingxin
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
3.Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China
4.Chinese Acad Sci, Res Ctr Coastal Environm Engn & Technol, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
5.Qingdao Univ Technol, Sch Environm & Municipal Engn, Qingdao 266033, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Gege,Ma, Jiping,Li, Shuang,et al. Cationic metal-organic frameworks as an efficient adsorbent for the removal of 2,4-dichlorophenoxyacetic acid from aqueous solutions[J]. ENVIRONMENTAL RESEARCH,2020,186:9.
APA Wu, Gege.,Ma, Jiping.,Li, Shuang.,Wang, Shasha.,Jiang, Bo.,...&Chen, Lingxin.(2020).Cationic metal-organic frameworks as an efficient adsorbent for the removal of 2,4-dichlorophenoxyacetic acid from aqueous solutions.ENVIRONMENTAL RESEARCH,186,9.
MLA Wu, Gege,et al."Cationic metal-organic frameworks as an efficient adsorbent for the removal of 2,4-dichlorophenoxyacetic acid from aqueous solutions".ENVIRONMENTAL RESEARCH 186(2020):9.

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来源：烟台海岸带研究所

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