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
ISSN2050-7488
2019-02-07
卷号7期号:5页码:2376-2384
关键词ELECTROSPUN NANOFIBROUS MEMBRANESAIR-GAP MEMBRANECARBON NANOTUBESSURFACE-ENERGYFABRICATIONWATERSUPERHYDROPHOBICITYTRANSPORTDESIGN
研究领域Chemistry; Energy & Fuels; Materials Science
DOI10.1039/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：23[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.cnhttp://ir.yic.ac.cn/handle/133337/24634
专题中科院烟台海岸带研究所知识产出
中科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 7714An, 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.
APAAn, 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.
MLAAn, 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.


PDF全文下载地址:

点我下载PDF