Selective Separation of Metal Ions via Monolayer Nanoporous Graphene with Carboxyl Groups | |
Department | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
Li Z(李湛)1,2; Liu, Yanqi3; Zhao, Yang3; Zhang, Xin3; Qian, Lijuan4; Tian, Longlong5; Bai, Jing2; Qi, Wei6; Yao HJ(姚会军)7; Gao, Bin7; Liu J(刘杰)2; Wu WS(吴王锁)3; Qiu HD(邱洪灯)1; Yao HJ(姚会军); Qiu HD(邱洪灯) | |
2016 | |
Source Publication | Analytical Chemistry |
ISSN | 0003-2700 |
Volume | 88Issue:20Pages:10002-10010 |
Abstract | 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 offline bulk separation. |
Subject Area | 分析化学与药物化学 |
DOI | 10.1021/acs.analchem.6b02175 |
Funding Organization | the National Natural Science Foundation of China (Nos. 21405165;21675164;11575261;11275237;21571088);the Funds for Distinguished Young Scientists of Gansu (1506RJDA281);the top priority program of "One-Three-Five" Strategic Planning of Lanzhou Insititute of Chemical Physics, CAS |
Indexed By | SCI |
If | 6.320 |
Language | 英语 |
Funding Project | 药物分离材料研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20597 |
Collection | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
Corresponding Author | Yao HJ(姚会军); Qiu HD(邱洪灯) |
Affiliation | 1.Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 3.The School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China 4.Department of Chemistry, State Key Lab of Molecular Engineering of Polymers, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China 5.School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Medical College of Soochow University, Suzhou, Jiangsu 215123, China 6.Institute of Applied Electromagnetic Engineering, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430000, China 7.Department of Agriculture and Biological Engineering, University of Florida, Gainesville, Florida 32611, United States |
Recommended Citation GB/T 7714 | Li Z,Liu, Yanqi,Zhao, Yang,et al. Selective Separation of Metal Ions via Monolayer Nanoporous Graphene with Carboxyl Groups[J]. Analytical Chemistry,2016,88(20):10002-10010. |
APA | Li Z.,Liu, Yanqi.,Zhao, Yang.,Zhang, Xin.,Qian, Lijuan.,...&邱洪灯.(2016).Selective Separation of Metal Ions via Monolayer Nanoporous Graphene with Carboxyl Groups.Analytical Chemistry,88(20),10002-10010. |
MLA | Li Z,et al."Selective Separation of Metal Ions via Monolayer Nanoporous Graphene with Carboxyl Groups".Analytical Chemistry 88.20(2016):10002-10010. |
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