Ionic Transport and Sieving Properties of Sub-nanoporous Polymer Membranes with Tunable Channel Size
文献类型：期刊论文
| 作者 | Cheng, Yaxiong3,4,5; Dong, Yuhua3,4,5; Huang, Qinggang5 ; Huang, Kejing3,4,5; Lyu, Shuangbao3,4,5; Chen, Yonghui4,5; Duan, Jinglai1,2,4,5; Mo, Dan1,2,4,5; Sun, Youmei4,5; Liu, Jie4,5
|
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2021-02-24 |
| 卷号 | 13期号:7页码:9015-9026 |
| 关键词 | ion irradiation nanoporous membrane sub-nanochannel ion transport ionic sieving |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/acsami.0c22689 |
| 通讯作者 | Yao, Huijun(yaohuijun@impcas.ac.cn) |
| 英文摘要 | Bioinspired nanoporous membranes show great potential in ionic separation and water filtration by offering high selectivity with less permeation resistance. However, complex processes always limit their applications. Here, we report a convenient approach to introduce ionic selective channels in a micron-thick polycarbonate membrane through swift heavy ion irradiation accompanied by UV sensitization and pulsed-electrical etching. The characteristic dimension of channels was tuned through regulating energy loss of the incident ion and UV sensitization time of the membrane, resulting in the subnanoporous membranes with mean channel diameter ranging from <2.4 to 9.7 angstrom. These membranes showed the voltage-activated ionic transport properties associated with the dehydration effect, and the corresponding I-V characteristics were related to ionic strength, solution pH, ionic type, and channel diameter. It was found that the transmembrane conduction of multivalent ions was severely suppressed compared to monovalent ions, until the size of the membrane channel was comparable to the hydrated diameter of multivalent ions. Ionic sieving experiments also demonstrated the excellent ionic valence selectivity of the membrane. Even for the membrane with a channel diameter close to 1 nm, the Li+/Mg2+ separation ratio was still as high as 40, and an even higher separation ratio was found for Li+/La3+ (>3000). |
| 资助项目 | National Nature Science Foundation of China[11775279] ; National Nature Science Foundation of China[11575261] ; National Key Research and Development Program of China[2019YFC1711300] ; Outstanding Young Scientist Project, Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH010] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000623228500113 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Nature Science Foundation of China ; National Key Research and Development Program of China ; Outstanding Young Scientist Project, Key Research Program of Frontier Sciences, CAS |
| 源URL | [http://119.78.100.186/handle/113462/137772]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Yao, Huijun |
| 作者单位 | 1.Huizhou Res Ctr Ion Sci, Huizhou 516000, Peoples R China 2.Adv Energy Sci & Technol Guangdong Lab, Huizhou 516000, Peoples R China 3.Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Yaxiong,Dong, Yuhua,Huang, Qinggang,et al. Ionic Transport and Sieving Properties of Sub-nanoporous Polymer Membranes with Tunable Channel Size[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(7):9015-9026. |
| APA | Cheng, Yaxiong.,Dong, Yuhua.,Huang, Qinggang.,Huang, Kejing.,Lyu, Shuangbao.,...&Yao, Huijun.(2021).Ionic Transport and Sieving Properties of Sub-nanoporous Polymer Membranes with Tunable Channel Size.ACS APPLIED MATERIALS & INTERFACES,13(7),9015-9026. |
| MLA | Cheng, Yaxiong,et al."Ionic Transport and Sieving Properties of Sub-nanoporous Polymer Membranes with Tunable Channel Size".ACS APPLIED MATERIALS & INTERFACES 13.7(2021):9015-9026. |
入库方式： OAI收割
来源：近代物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。