| Enhanced dehydration performance of hybrid membranes by incorporating fillers with hydrophilic-hydrophobic regions | |
Wang, MR; Wu, H; Jin, XT; Yang, C; He, XY; Pan, FS; Jiang, ZY; Wang, CY; Chen, MM ; Zhang, P; Cao, XZ; 张鹏(正); Cao XZ(曹兴忠)
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| 2018 | |
| Source Publication | CHEMICAL ENGINEERING SCIENCE
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| ISSN | 0009-2509 |
| EISSN | 1873-4405 |
| Volume | 178Pages:273-283 |
| Subtype | Article |
| Abstract | 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. |
| Keyword | Hybrid membrane Sulfonated pitch Pervaporation Ethanol dehydration Alginate |
| DOI | 10.1016/j.ces.2017.12.021 |
| WOS Keyword | SODIUM ALGINATE MEMBRANE ; PERVAPORATION PERFORMANCE ; MECHANICAL-PROPERTIES ; ALCOHOL DEHYDRATION ; GRAPHENE OXIDES ; CROSS-LINKING ; WATER ; SEPARATION ; PERMEATION ; MATRIX |
| Indexed By | SCI ; ADS ; EI |
| Language | 英语 |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| WOS ID | WOS:000425918200024 |
| EI Accession Number | 20180904839404 |
| ADS Bibcode | 2018ChEnS.178..273W |
| ADS URL | https://ui.adsabs.harvard.edu/abs/2018ChEnS.178..273W |
| ADS CITATIONS | https://ui.adsabs.harvard.edu/abs/2018ChEnS.178..273W/citations |
| Citation statistics |
Cited Times:0 [ADS]
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| Document Type | 期刊论文 |
| Identifier | http://ir.ihep.ac.cn/handle/311005/285680 |
| Collection | 实验物理中心 多学科研究中心 |
| Affiliation | 中国科学院高能物理研究所 |
| First Author Affilication | Institute of High Energy |
| Recommended Citation GB/T 7714 | Wang, MR,Wu, H,Jin, XT,et al. Enhanced dehydration performance of hybrid membranes by incorporating fillers with hydrophilic-hydrophobic regions[J]. CHEMICAL ENGINEERING SCIENCE,2018,178:273-283. |
| APA | Wang, MR.,Wu, H.,Jin, XT.,Yang, C.,He, XY.,...&曹兴忠.(2018).Enhanced dehydration performance of hybrid membranes by incorporating fillers with hydrophilic-hydrophobic regions.CHEMICAL ENGINEERING SCIENCE,178,273-283. |
| MLA | Wang, MR,et al."Enhanced dehydration performance of hybrid membranes by incorporating fillers with hydrophilic-hydrophobic regions".CHEMICAL ENGINEERING SCIENCE 178(2018):273-283. |
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