Enhanced dehydration performance of hybrid membranes by incorporating fillers with hydrophilic-hydrophobic regions
文献类型：期刊论文
| 作者 | Yang, C; He, XY; Pan, FS; Jiang, ZY; Wang, CY; Chen, MM ; 张鹏(正); Cao XZ(曹兴忠); Cao, XZ; Zhang, P
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| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 178页码:273-283 |
| 关键词 | Hybrid membrane Sulfonated pitch Pervaporation Ethanol dehydration Alginate |
| ISSN号 | 0009-2509 |
| DOI | 10.1016/j.ces.2017.12.021 |
| 文献子类 | Article |
| 英文摘要 | In this study, sulfonated pitch (SP), composed of hydrophilic sulfonate groups and hydrophobic polycyclic aromatic hydrocarbons, was incorporated into sodium alginate (SA) membranes for ethanol dehydration via pervaporation. The morphologies and structures of the SP and hybrid membranes were confirmed by transmission electron microscopy (TEM), Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (SEM), positron annihilation lifetime spectroscopy (PALS) and water contact angle measurement. Hydrophilic sulfonate groups in SP formed hydrophilic regions which can bind water molecules, ensuring sufficient water occupancy in the membranes, while the hydrophobic polycyclic aromatic hydrocarbons provided continuous transport "highways" for the water molecules. Meanwhile, the introduction of SP created more polymer-filler interface cavities, rendering the membrane with suitable free volume property for separation. Consequently, the membrane demonstrated a maximum permeation flux of 1879 +/- 80 g/m(2) h coupled with an optimal separation factor of 1913 +/- 69 in separating 90 wt% ethanol aqueous solution. These resulted in an increase over the SA control membrane of 1.5-fold and 4-fold respectively. Moreover, the hybrid membranes exhibited good operation stability. The results suggested that incorporating fillers with hydrophilic-hydrophobic regions in the membranes can be an effective strategy to improve the performance of water-permselective membranes. (C) 2017 Elsevier Ltd. All rights reserved. |
| 电子版国际标准刊号 | 1873-4405 |
| WOS关键词 | SODIUM ALGINATE MEMBRANE ; PERVAPORATION PERFORMANCE ; MECHANICAL-PROPERTIES ; ALCOHOL DEHYDRATION ; GRAPHENE OXIDES ; CROSS-LINKING ; WATER ; SEPARATION ; PERMEATION ; MATRIX |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000425918200024 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285680]  |
| 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 | Yang, C,He, XY,Pan, FS,et al. Enhanced dehydration performance of hybrid membranes by incorporating fillers with hydrophilic-hydrophobic regions[J]. CHEMICAL ENGINEERING SCIENCE,2018,178:273-283. |
| APA | Yang, C.,He, XY.,Pan, FS.,Jiang, ZY.,Wang, CY.,...&Jin, XT.(2018).Enhanced dehydration performance of hybrid membranes by incorporating fillers with hydrophilic-hydrophobic regions.CHEMICAL ENGINEERING SCIENCE,178,273-283. |
| MLA | Yang, C,et al."Enhanced dehydration performance of hybrid membranes by incorporating fillers with hydrophilic-hydrophobic regions".CHEMICAL ENGINEERING SCIENCE 178(2018):273-283. |
入库方式： OAI收割
来源：高能物理研究所
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