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Selective Separation of Metal Ions via Monolayer Nanoporous Graphene with Carboxyl Groups

文献类型：期刊论文

作者Tian, Longlong2,4; Bai, Jing8; Qi, Wei1; Yao, Huijun6; Zhang, Xin7; Zhao, Yang3,5; Liu, Yanqi7; Li, Zhan8,9,10; Liu, Jie8; Qian, Lijuan7
刊名ANALYTICAL CHEMISTRY
出版日期2016-10-18
卷号88页码:10002-10010
ISSN号0003-2700
DOI10.1021/acs.analchem.6b02175
英文摘要Graphene-coated plastic substrates, such as polyethylene terephthalate (PET), are regularly used in flexible electronic devices. Here we demonstrate a new application of the graphene-coated nanoporous PET membrane for the selective separation of metal ions in an ion exchange manner. Irradiation with swift heavy ions is used to perforate graphene and PET substrate. This process could create graphene nanopores with carboxyl groups, thus forming conical holes in the PET after chemical etching to support graphene nanopores. Therefore, a monolayer nanoporous graphene membrane with a PET substrate is constructed successfully to investigate its ionic selective separation. We find that the permeation ratio of ions strongly depends on the temperature and H+ concentration in the driving solution. An electric field can increase the permeation ratio of ions through the graphene nanopores, but it inhibits the ion selective separation. Moreover, the structure of the graphene nanopore with carboxyl groups is resolved at the density functional theory level. The results show the asymmetric structure of the nanopore with carboxyl groups, and the analysis indicates that the ionic permeation can be attributed to the ion exchange between metal ions and protons on the two sides of graphene nanopores. These results would be beneficial to the design of membrane separation materials made from graphene with efficient online and gffiine bulk separation.
WOS关键词OXIDE MEMBRANES ; POROUS GRAPHENE ; SINGLE-LAYER ; RAMAN-SPECTROSCOPY ; HYDRATED IONS ; HIGH-QUALITY ; TRANSPORT ; HYDROGEN ; FILMS ; CHALLENGES
资助项目National Natural Science Foundation of China[21405165] ; National Natural Science Foundation of China[21675164] ; National Natural Science Foundation of China[11575261] ; National Natural Science Foundation of China[11275237] ; National Natural Science Foundation of China[21571088] ; Funds for Distinguished Young Scientists of Gansu[1506RJDA281] ; top priority program of "One-Three-Five" Strategic Planning of Lanzhou Institute of Chemical Physics, CAS
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000385907400020
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; Funds for Distinguished Young Scientists of Gansu ; top priority program of "One-Three-Five" Strategic Planning of Lanzhou Institute of Chemical Physics, CAS
源URL[http://119.78.100.186/handle/113462/43483]  
专题近代物理研究所_实验物理中心
近代物理研究所_材料研究中心
通讯作者Yao, Huijun; Qiu, Hongdeng
作者单位1.Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, Inst Appl Electromagnet Engn, Wuhan 430000, Peoples R China
2.Soochow Univ, Sch Radiol & Interdisciplinary Sci RAD X, Collaborat Innovat Ctr Radiat Med Jiangsu Higher, Coll Med, Suzhou 215123, Jiangsu, Peoples R China
3.Fudan Univ, State Key Lab Mol Engn Polymers, Shanghai Key Lab Mol Catalysis & Innovat Mat, Dept Chem, Shanghai 200433, Peoples R China
4.Soochow Univ, Sch Radiat Med & Protect, Coll Med, Collaborat Innovat Ctr Radiat Med Jiangsu Higher, Suzhou 215123, Jiangsu, Peoples R China
5.Fudan Univ, Collaborat Innovat Ctr Chem Energy Mat, Shanghai 200433, Peoples R China
6.Univ Florida, Dept Agr & Biol Engn, Gainesville, FL 32611 USA
7.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
8.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
9.Chinese Acad Sci, Key Lab Nat Med Gansu Prov, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China
10.Chinese Acad Sci, Key Lab Chem Northwestern Plant Resources, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Tian, Longlong,Bai, Jing,Qi, Wei,et al. Selective Separation of Metal Ions via Monolayer Nanoporous Graphene with Carboxyl Groups[J]. ANALYTICAL CHEMISTRY,2016,88:10002-10010.
APA Tian, Longlong.,Bai, Jing.,Qi, Wei.,Yao, Huijun.,Zhang, Xin.,...&Gao, Bin.(2016).Selective Separation of Metal Ions via Monolayer Nanoporous Graphene with Carboxyl Groups.ANALYTICAL CHEMISTRY,88,10002-10010.
MLA Tian, Longlong,et al."Selective Separation of Metal Ions via Monolayer Nanoporous Graphene with Carboxyl Groups".ANALYTICAL CHEMISTRY 88(2016):10002-10010.

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来源：近代物理研究所

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