Water-selective permeation in hybrid membrane incorporating multi-functional hollow ZIF-8 nanospheres
文献类型：期刊论文
| 作者 | Cheng, XX; Cheng, XP; Yang, H ; Tang, L; Liu, GH; Wang, MR; Wu, H; Pan, FS; Cao, XZ; Cao XZ(曹兴忠)
|
| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 555页码:146-156 |
| 关键词 | Hollow ZIF-8 nanospheres Hybrid membrane Water-selective permeation Molecular sieving effect Hierarchical structures |
| ISSN号 | 0376-7388 |
| DOI | 10.1016/j.memsci.2018.03.024 |
| 文献子类 | Article |
| 英文摘要 | Incorporating metal-organic frameworks (MOFs) into polymer to fabricate hybrid membranes is an effective approach of breaking the trade-off between permeability and selectivity. In this study, hollow zeolitic imidazolate framework-8 (HZIF-8) nanospheres were prepared and blended into sodium alginate (SA) matrix to fabricate water-selective hybrid membrane, which intensify the diffusion process of water molecules dramatically owing to their well-designed hierarchical structures. The micropores on HZIF-8 nanosphere shell have a molecular sieving effect, which enhances diffusion selectivity of water molecules. The hollow structure of HZIF-8 nanospheres ensures the rapid diffusion of water molecules, thus elevating the permeation flux and separation factor simultaneously. Besides, the intervention effects of HZIF-8 nanospheres on the SA chain packing also contribute to the enhancement of permeation flux and separation factor by rendering the membrane more free volume cavities and suitable free volume cavity size for ethanol/water separation. When utilized to separate 90 wt% ethanol aqueous solution at 76 degrees C, the hybrid membrane containing 6 wt% HZIF-8 displays the highest separation performance with permeation flux of 2485 g/m(2) h and separation factor of 1884, much superior to those for pure SA membrane and the hybrid membranes incorporating zeolitic imidazolate framework-8 (ZIF-8) nanocrystals. Desirable long-term stability of the hybrid membranes was also acquired. |
| 电子版国际标准刊号 | 1873-3123 |
| WOS关键词 | METAL-ORGANIC FRAMEWORKS ; MIXED-MATRIX MEMBRANES ; ZEOLITIC-IMIDAZOLATE FRAMEWORK ; PERVAPORATION DEHYDRATION ; COMPOSITE MEMBRANES ; SEPARATION PERFORMANCE ; CARBON NANOTUBES ; ETHYLENE-GLYCOL ; SODIUM ALGINATE ; NANOSTRUCTURES |
| WOS研究方向 | Engineering ; Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000432587300016 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285918]  |
| 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,Cheng, XP,Yang, H,et al. Water-selective permeation in hybrid membrane incorporating multi-functional hollow ZIF-8 nanospheres[J]. JOURNAL OF MEMBRANE SCIENCE,2018,555:146-156. |
| APA | Cheng, XX.,Cheng, XP.,Yang, H.,Tang, L.,Liu, GH.,...&Jiang, ZY.(2018).Water-selective permeation in hybrid membrane incorporating multi-functional hollow ZIF-8 nanospheres.JOURNAL OF MEMBRANE SCIENCE,555,146-156. |
| MLA | Cheng, XX,et al."Water-selective permeation in hybrid membrane incorporating multi-functional hollow ZIF-8 nanospheres".JOURNAL OF MEMBRANE SCIENCE 555(2018):146-156. |
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。