Structural tailoring of hierarchical fibrous composite membranes to balance mass transfer and heat transfer for state-of-the-art desalination performance in membrane distillation

doi:10.1039/c8ta10850a

	Structural tailoring of hierarchical fibrous composite membranes to balance mass transfer and heat transfer for state-of-the-art desalination performance in membrane distillation
	An, Xiaochan ; Xu, Guorong ; Xie, Baolei ; Hu, Yunxia
发表期刊	JOURNAL OF MATERIALS CHEMISTRY A
ISSN	2050-7488
	2019-02-07
卷号	7 期号:5 页码:2376-2384
关键词	ELECTROSPUN NANOFIBROUS MEMBRANES AIR-GAP MEMBRANE CARBON NANOTUBES SURFACE-ENERGY FABRICATION WATER SUPERHYDROPHOBICITY TRANSPORT DESIGN
研究领域	Chemistry ; Energy & Fuels ; Materials Science
DOI	10.1039/c8ta10850a
产权排序	[An, Xiaochan; Xie, Baolei; Hu, Yunxia] Tianjin Polytech Univ, Sch Mat Sci & Engn, Natl Ctr Int Res Membrane Sci & Technol, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China; [Xu, Guorong] SOA, Inst Seawater Desalinat & Multipurpose Utilizat, Tianjin 300192, Peoples R China; [An, Xiaochan] Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Res Ctr Coastal Environm Engn & Technol Shandong, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China; [Xie, Baolei; Hu, Yunxia] Tianjin Polytech Univ, Sch Chem & Environm Engn, Tianjin 300387, Peoples R China
作者部门	中科院烟台海岸带研究所知识产出
英文摘要	Membrane distillation (MD) displays superior characteristics to other technologies to alleviate the ever-increasing freshwater crisis through seawater desalination and/or wastewater recycling. However, the critical challenge in MD is fabricating high-performance membranes. In this study, we fabricated a high-performance hierarchical fibrous composite (HFC) membrane to acquire a high water flux while maintaining a high salt rejection for MD. This HFC membrane comprises of a thin active dense layer with small poly (vinylidene fluoride-co-hexafluoropropylene) (PH) nanofibers to allow maximum mass transfer and a thick support layer with large poly(ethylene terephthalate) (PET) microfibers to give minimum heat transfer. By tailoring the structures of both the active and support layers to reduce the trade-off between the mass transfer and heat transfer during the MD process, the optimized HFC membrane, having a 3 mm thick PH active layer and 70 mm thick PET support layer, achieved the highest reported water flux of 79.21 +/- 4.17 L m(-2) h(-1) and the salt rejection was higher than 99.9% using 3.5 wt% NaCl as the feed under a temperature difference of 40 degrees C in direct contact membrane distillation (DCMD). Our study describes a novel HFC membrane which demonstrates great achievements in elevating the MD performance.
文章类型	Article
资助机构	Chang-jiang Scholars and Innovative Research Team in the University of Ministry of Education, China [IRT-17R80] ; Program for Innovative Research Team in University of Tianjin [TD13-5044] ; Science and Technology Plans of Tianjin [17PTSYJC00060]
收录类别	SCI
语种	英语
关键词[WOS]	ELECTROSPUN NANOFIBROUS MEMBRANES ; AIR-GAP MEMBRANE ; CARBON NANOTUBES ; SURFACE-ENERGY ; FABRICATION ; WATER ; SUPERHYDROPHOBICITY ; TRANSPORT ; DESIGN
研究领域[WOS]	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000457546000046
引用统计	被引频次：43[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/24634
专题	中国科学院烟台海岸带研究所知识产出中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
作者单位	1.Tianjin Polytech Univ, Sch Mat Sci & Engn, Natl Ctr Int Res Membrane Sci & Technol, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China; 2.SOA, Inst Seawater Desalinat & Multipurpose Utilizat, Tianjin 300192, Peoples R China; 3.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Res Ctr Coastal Environm Engn & Technol Shandong, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China; 4.Tianjin Polytech Univ, Sch Chem & Environm Engn, Tianjin 300387, Peoples R China
推荐引用方式 GB/T 7714	An, Xiaochan,Xu, Guorong,Xie, Baolei,et al. Structural tailoring of hierarchical fibrous composite membranes to balance mass transfer and heat transfer for state-of-the-art desalination performance in membrane distillation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(5):2376-2384.
APA	An, Xiaochan,Xu, Guorong,Xie, Baolei,&Hu, Yunxia.(2019).Structural tailoring of hierarchical fibrous composite membranes to balance mass transfer and heat transfer for state-of-the-art desalination performance in membrane distillation.JOURNAL OF MATERIALS CHEMISTRY A,7(5),2376-2384.
MLA	An, Xiaochan,et al."Structural tailoring of hierarchical fibrous composite membranes to balance mass transfer and heat transfer for state-of-the-art desalination performance in membrane distillation".JOURNAL OF MATERIALS CHEMISTRY A 7.5(2019):2376-2384.

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