Hierarchical pore architectures from 2D covalent organic nanosheets for efficient water/alcohol separation
文献类型：期刊论文
| 作者 | Cheng, XX; Cao XZ(曹兴忠) ; Jiang, ZY; Liu, GH; Pan, FS; Cao, XZ; Yang, H; Wu, H; Xu, Z; Mu, BW
|
| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 561页码:79-88 |
| 关键词 | Covalent organic nanosheets Hybrid membranes Hierarchical pore architectures Water/alcohol separation Water-selective permeation |
| ISSN号 | 0376-7388 |
| DOI | 10.1016/j.memsci.2018.05.036 |
| 文献子类 | Article |
| 英文摘要 | By mimicking the respiratory system in organisms, hybrid membranes with hierarchical pore structures were constructed by covalent organic nanosheets (CONs) and poly(ether sulfone) (PES). Two kinds of amide modified CONs, TpPa-1 and TpBD, with different pore sizes were facilely synthesized by the Schiff base reactions of 1,3,5-triformylphloroglucinol (Tp) with p-phenylenediamine (Pa-1) and benzidine (BD), and separately incorporated into the PES. The hierarchical pore structures within the hybrid membranes including micropores (0.278-0.289 nm), mesopores (2-50 nm) and macropores (1-10 mu m) were generated by the addition of CONs. The microporous structures in top dense layer with high separation accuracy arose from CONs and PES chains. The mesoporous structures and the macroporous structures in porous sublayer with ultralow resistance arose from sponge-like pores and finger-like pores of PES, respectively. A smooth transition of micro-, meso-and macroporous structures rendered the membranes desired level of separation efficiency as well as high stability. Remarkably, the hybrid membrane consisting of TpPa-1 CONs (8 wt%) showed a high water/ethanol separation factor of 1150, while the membrane consisting of TpBD CONs (8 wt%) exhibited a high water/n-butanol separation factor of 2735. The permeation fluxes for both separation systems were higher than 2.5 kgm(-2) h(-1). The links between hierarchical architectures and performance in membranes could facilitate the rational design of novel membrane architectures with advanced properties. |
| 电子版国际标准刊号 | 1873-3123 |
| WOS关键词 | MIXED MATRIX MEMBRANES ; POTENTIAL APPLICATIONS ; WATER-ADSORPTION ; HYBRID MEMBRANE ; GRAPHENE OXIDES ; GAS SEPARATION ; FRAMEWORKS ; CRYSTALLINE ; PERVAPORATION ; METAMATERIALS |
| WOS研究方向 | Engineering ; Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000434713700008 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285995]  |
| 专题 | 高能物理研究所_实验物理中心 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Cheng, XX,Cao XZ,Jiang, ZY,et al. Hierarchical pore architectures from 2D covalent organic nanosheets for efficient water/alcohol separation[J]. JOURNAL OF MEMBRANE SCIENCE,2018,561:79-88. |
| APA | Cheng, XX.,曹兴忠.,Jiang, ZY.,Liu, GH.,Pan, FS.,...&Lin, ZX.(2018).Hierarchical pore architectures from 2D covalent organic nanosheets for efficient water/alcohol separation.JOURNAL OF MEMBRANE SCIENCE,561,79-88. |
| MLA | Cheng, XX,et al."Hierarchical pore architectures from 2D covalent organic nanosheets for efficient water/alcohol separation".JOURNAL OF MEMBRANE SCIENCE 561(2018):79-88. |
入库方式： OAI收割
来源：高能物理研究所
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。