Fabrication of hydrophobic flat sheet and hollow fiber membranes from PVDF and PVDF-CTFE for membrane distillation
文献类型：期刊论文
| 作者 | Wang, Jun; Zheng, Libing ; Wu, Zhenjun; Zhang, Yong; Zhang, Xiaohui
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| 刊名 | JOURNAL OF MEMBRANE SCIENCE
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| 出版日期 | 2016 |
| 卷号 | 497期号:0页码:183-193 |
| 关键词 | Pvdf-ctfe Copolymer Hydrophobicity Phase Inversion Pore Structure And Morphology Dcmd |
| DOI | 10.1016/j.memsci.2015.09.024 |
| 英文摘要 | Hydrophobic polyvinylidene fluoride (PVDF) membranes have been used in membrane distillation, however its performance in terms of permeation flux and salt rejection still needs to be improved. In this study, polyvinylidenedifluoride-co-chlorotrifluoroethylene (PVDF-CTFE), a PVDF based copolymer, was employed to fabricate both flat sheet and hollow fiber membranes. Two pore forming additives (PEG and Lid) were used in order to examine their effects on the membrane micro-structure and consequently the distillation performance. The crystalline property of the polymers was studied via X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) to reveal its role in the membrane formation. The membrane morphology (SEM), surface property (AFM) and membrane properties (contact angle, pore size, porosity and pore size distribution) were systematically examined and compared among PVDF, PVDF-CTFE membranes as well as their counterparts with pore forming additives. The results revealed that PVDF-CTFE membrane exhibited optimal membrane morphology, pore structure and hydrophobicity, thus delivering better distillation performance (permeation flux up to 62.09 kg/m(2) h, and distillate conductivity as low as 5 mu S/cm) in comparison with their PVDF membrane counterparts. (C) 2015 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36185]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Jun,Zheng, Libing,Wu, Zhenjun,et al. Fabrication of hydrophobic flat sheet and hollow fiber membranes from PVDF and PVDF-CTFE for membrane distillation[J]. JOURNAL OF MEMBRANE SCIENCE,2016,497(0):183-193. |
| APA | Wang, Jun,Zheng, Libing,Wu, Zhenjun,Zhang, Yong,&Zhang, Xiaohui.(2016).Fabrication of hydrophobic flat sheet and hollow fiber membranes from PVDF and PVDF-CTFE for membrane distillation.JOURNAL OF MEMBRANE SCIENCE,497(0),183-193. |
| MLA | Wang, Jun,et al."Fabrication of hydrophobic flat sheet and hollow fiber membranes from PVDF and PVDF-CTFE for membrane distillation".JOURNAL OF MEMBRANE SCIENCE 497.0(2016):183-193. |
入库方式： OAI收割
来源：生态环境研究中心
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