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Ultrafast ion sieving using nanoporous polymeric membranes

文献类型：期刊论文

作者Wang, Pengfei2; Wang, Mao2; Kluth, Patrick6; Liu, Feng2,3; Wang, Yugang2; Trautmann, Christina1,7; Ding, Siyuan2; Wang, Xue2; Apel, Pavel5; Liu, Jie4
刊名NATURE COMMUNICATIONS
出版日期2018-02-08
卷号9页码:9
ISSN号2041-1723
DOI10.1038/s41467-018-02941-6
英文摘要The great potential of nanoporous membranes for water filtration and chemical separation has been challenged by the trade-off between selectivity and permeability. Here we report on nanoporous polymer membranes with an excellent balance between selectivity and permeability of ions. Our membranes are fabricated by irradiating 2-mu m-thick polyethylene terephthalate Lumirror (R) films with GeV heavy ions followed by ultraviolet exposure. These membranes show a high transport rate of K+ ions of up to 14 mol h(-1)m(-2) and a selectivity of alkali metal ions over heavy metal ions of >500. Combining transport experiments and molecular dynamics simulations with a polymeric nanopore model, we demonstrate that the high permeability is attributable to the presence of nanopores with a radius of similar to 0.5 nm and a density of up to 5 x 10(10) cm(-2), and the selectivity is ascribed to the interaction between the partially dehydrated ions and the negatively charged nanopore wall.
WOS关键词GRAPHENE OXIDE MEMBRANES ; SINGLE-LAYER GRAPHENE ; WATER-PURIFICATION ; SUBNANOMETER PORES ; NEXT-GENERATION ; METAL IONS ; TRANSPORT ; CHANNELS ; DESALINATION ; PERFORMANCE
资助项目National Science Foundation of China[11335003] ; National Science Foundation of China[31670852] ; National Magnetic Confinement Fusion Energy Research Project of China[2015GB113000] ; Peking University's 100-talent plan ; Australian Research Council ; Deutsche Forschungsgemeinschaft[DFG-FOR1583]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATURE PUBLISHING GROUP
WOS记录号WOS:000424451300014
资助机构National Science Foundation of China ; National Magnetic Confinement Fusion Energy Research Project of China ; Peking University's 100-talent plan ; Australian Research Council ; Deutsche Forschungsgemeinschaft
源URL[http://119.78.100.186/handle/113462/46317]  
专题近代物理研究所_实验物理中心
通讯作者Liu, Feng; Wang, Yugang
作者单位1.Tech Univ Darmstadt, D-64291 Darmstadt, Germany
2.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
3.Peking Univ, Ctr Quantitat Biol, Beijing 100871, Peoples R China
4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
5.Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna 141980, Russia
6.Australian Natl Univ, Res Sch Phys & Engn, Dept Elect Mat Engn, Canberra, ACT 2601, Australia
7.GSI Helmholtzzentrum, D-64291 Darmstadt, Germany
推荐引用方式
GB/T 7714		 Wang, Pengfei,Wang, Mao,Kluth, Patrick,et al. Ultrafast ion sieving using nanoporous polymeric membranes[J]. NATURE COMMUNICATIONS,2018,9:9.
APA Wang, Pengfei.,Wang, Mao.,Kluth, Patrick.,Liu, Feng.,Wang, Yugang.,...&Du, Guanghua.(2018).Ultrafast ion sieving using nanoporous polymeric membranes.NATURE COMMUNICATIONS,9,9.
MLA Wang, Pengfei,et al."Ultrafast ion sieving using nanoporous polymeric membranes".NATURE COMMUNICATIONS 9(2018):9.

入库方式： OAI收割

来源：近代物理研究所

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