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Selectively Enhanced Ion Transport in Graphene Oxide Membrane/PET Conical Nanopore System

文献类型：期刊论文

作者Bai, Jing2,3; Liu, Jie2,3; Yao, Huijun2,3; Dong, Yuhua2,3; Cheng, Yaxiong2,3; Xu, Guoheng1,2; Cheng, Hongwei2,3; Huang, Kejing2,3; Duan, Jinglai2,3; Mo, Dan2,3
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2019-04-24
卷号11期号:16页码:14960-14969
关键词ion irradiation graphene oxide membrane conical nanopore ionic current rectification ion selectivity
ISSN号1944-8244
DOI10.1021/acsami.9b01071
通讯作者Liu, Jie(J.Liu@impcas.ac.cn) ; Yao, Huijun(Yaohuijun@impcas.ac.cn)
英文摘要Graphene oxide (GO) has become a promising 2D material in many areas, such as gas separation, seawater desalination, antibacterial materials, and so on because of its abundant oxygen-containing functional groups and excellent dispersibility in various solvents. The graphene oxide membrane (GOM), a laminar and channel-rich structure assembled by stacked GO nanosheets, served as a kind of precise and ultrafast separation material has attracted widespread attention in membrane separation field. To break the trade-off between ion permeability and ion selectivity of separation membrane based on GOM, GOM/conical nanopore system is obtained by spin-coating ultrathin GOM on PET conical nanopore, which possesses ion rectification property. Comparing to pure PET conical nanopore, the existence of GOM not only enhances the cation conductance but also makes the ion rectification ratio increase from 4.6 to 238.0 in KCl solution. Assisted by COMSOL simulation, it is proved that the GOM can absorb large amount of cations and act as cation source to improve the ion selectivity and rectification effect of GOM/conical nanopore system. Finally, the chemical stability of GOM/conical nanopore is also investigated and the corresponding results reveal that the GOM/conical nanopore system can perform the ion rectification behavior in a wider pH range than pure PET conical nanopore. The presented findings demonstrate the great potential applications of GOM/conical nanopore system in ionic logic circuits and sensor systems.
WOS关键词SINGLE ; RECTIFICATION ; ULTRATHIN
资助项目National Nature Science Foundation of China[11575261] ; National Nature Science Foundation of China[11575260] ; National Nature Science Foundation of China[11775279] ; National Nature Science Foundation of China[11505243]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000466052800048
出版者AMER CHEMICAL SOC
资助机构National Nature Science Foundation of China
源URL[http://119.78.100.186/handle/113462/133484]  
专题中国科学院近代物理研究所
通讯作者Liu, Jie; Yao, Huijun
作者单位1.Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu 610031, Sichuan, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Bai, Jing,Liu, Jie,Yao, Huijun,et al. Selectively Enhanced Ion Transport in Graphene Oxide Membrane/PET Conical Nanopore System[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(16):14960-14969.
APA Bai, Jing.,Liu, Jie.,Yao, Huijun.,Dong, Yuhua.,Cheng, Yaxiong.,...&Sun, Youmei.(2019).Selectively Enhanced Ion Transport in Graphene Oxide Membrane/PET Conical Nanopore System.ACS APPLIED MATERIALS & INTERFACES,11(16),14960-14969.
MLA Bai, Jing,et al."Selectively Enhanced Ion Transport in Graphene Oxide Membrane/PET Conical Nanopore System".ACS APPLIED MATERIALS & INTERFACES 11.16(2019):14960-14969.

入库方式： OAI收割

来源：近代物理研究所

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