Preparation and characterization of PVDF/nonwoven fabric flat-sheet composite membranes for desalination through direct contact membrane distillation
文献类型：期刊论文
| 作者 | Hou, Deyin ; Dai, Guohua ; Wang, Jun ; Fan, Hua ; Zhang, Lin ; Luan, Zhaokun |
| 刊名 | Engineering
 |
| 出版日期 | 2012 |
| 卷号 | 101期号:1页码:1-10 |
| 关键词 | Membrane distillation Composite membrane Polyvinylidene fluoride Nonwoven fabric Hydrophobicity |
| ISSN号 | 1383-5866 |
| 中文摘要 | The polyvinylidene fluoride (PVDF) flat-sheet composite membranes were prepared for membrane distillation using hydrophilic polyester nonwoven fabric as a support through coating and wet phase inversion process. The influence of non-solvent additive on membrane morphology, porosity, pore size and pore size distribution, hydrophobicity and permeability were evaluated. It was found that the membrane with a mixture of acetone and H3PO4 as non-solvent additive had a thinner top skin and a more porous network sponge-like layer from the morphology study. This membrane also exhibited a narrow pore size distribution and its mean pore size was about 0.22 mu m in diameter. The rough membrane surface with smaller nodules produced a higher contact angle of 82.6 +/- 0.7 degrees with water according to atomic force microscope images analysis. During the direct contact membrane distillation (DCMD) process of 35 g/L sodium chloride solution, the maximum transmembrane permeate flux about 47.6 kg/m(2) h was obtained with the feed solution at 80.5 degrees C and the cold distillate water at 20.0 degrees C. Furthermore, the membrane showed satisfying performance stability in the 240 h continuous desalination experiment, indicating that the prepared PVDF/nonwoven fabric flat-sheet composite membrane may be of great potential to be utilized in DCMD process for desalination. (c) 2012 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000311703100001 |
| 公开日期 | 2014-11-28 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8157]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Hou, Deyin,Dai, Guohua,Wang, Jun,et al. Preparation and characterization of PVDF/nonwoven fabric flat-sheet composite membranes for desalination through direct contact membrane distillation[J]. Engineering,2012,101(1):1-10. |
| APA | Hou, Deyin,Dai, Guohua,Wang, Jun,Fan, Hua,Zhang, Lin,&Luan, Zhaokun.(2012).Preparation and characterization of PVDF/nonwoven fabric flat-sheet composite membranes for desalination through direct contact membrane distillation.Engineering,101(1),1-10. |
| MLA | Hou, Deyin,et al."Preparation and characterization of PVDF/nonwoven fabric flat-sheet composite membranes for desalination through direct contact membrane distillation".Engineering 101.1(2012):1-10. |
入库方式： OAI收割
来源：生态环境研究中心
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