Fabrication and post-treatment of nanofibers-covered hollow fiber membranes for membrane distillation | |
Su, Chunlei1,2; Lu, Chun1,2; Cao, Hongbin1; Tang, Kexin1; Chang, Junjun1,2; Duan, Feng1; Ma, Xiaofeng1; Li, Yuping1,2 | |
刊名 | JOURNAL OF MEMBRANE SCIENCE |
2018-09-15 | |
卷号 | 562页码:38-46 |
关键词 | Hollow Fiber Membrane Nanofiber Electrospinning Membrane Distillation Desalination |
ISSN号 | 0376-7388 |
DOI | 10.1016/j.memsci.2018.05.027 |
英文摘要 | Novel nanofibers-covered hollow fiber membrane (N-HFM), combining the advantages of both electrospun nanofibers film and hollow fiber membrane was fabricated via electrospinning with non-rotational collectors. The key parameters of electrospinning including positive voltage, negative voltage, polymer concentration and working distance were optimized to examine their effects on the morphology and structure of N-HFM. Meanwhile, a solvent vapor welding post-treatment was firstly applied to enhance the mechanical strength of hollow fiber membranes. The welding can improve the mechanical property and water repellency as well as maintain the high porosity, by fusing the nanofibers just at junctions. After a 40 min welding, the Young's modulus, strain at break and tensile strength of the welded N-HFM increased by 117%, 79% and 90% respectively, compared to the pristine N-HFM. Furthermore, the welded N-HFM was able to present a high flux of 13.2 Lm(-2) h(-1) and a stable salt rejection of over 99.9% during the 5 h of direct contact membrane distillation (DCMD) test, suggesting the competency of the welded N-HFM for MD applications. |
资助项目 | NSFC (Natural Science Foundation of China)[21377130] ; NSFC (Natural Science Foundation of China)[51425405] |
WOS关键词 | Air-gap Membrane ; Poly(Vinylidene Fluoride) ; Electrospun Membranes ; Composite Membrane ; In-vitro ; Polymer ; Desalination ; Water ; Performance ; Morphology |
WOS研究方向 | Engineering ; Polymer Science |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000434289800005 |
资助机构 | NSFC (Natural Science Foundation of China) |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/24733] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Li, Yuping |
作者单位 | 1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Div Environm Technol & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Su, Chunlei,Lu, Chun,Cao, Hongbin,et al. Fabrication and post-treatment of nanofibers-covered hollow fiber membranes for membrane distillation[J]. JOURNAL OF MEMBRANE SCIENCE,2018,562:38-46. |
APA | Su, Chunlei.,Lu, Chun.,Cao, Hongbin.,Tang, Kexin.,Chang, Junjun.,...&Li, Yuping.(2018).Fabrication and post-treatment of nanofibers-covered hollow fiber membranes for membrane distillation.JOURNAL OF MEMBRANE SCIENCE,562,38-46. |
MLA | Su, Chunlei,et al."Fabrication and post-treatment of nanofibers-covered hollow fiber membranes for membrane distillation".JOURNAL OF MEMBRANE SCIENCE 562(2018):38-46. |
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