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Integrated polyamide thin-film nanofibrous composite membrane regulated by functionalized interlayer for efficient water/isopropanol separation
Cheng, C; Li, PY; Shen, K; Zhang, TH; Cao, XZ; Wang, BY; Wang, XF; Hsiao, BS; Cao XZ(曹兴忠); Wang BY(王宝义)
2018
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
EISSN1873-3123
Volume553Pages:70-81
SubtypeArticle
AbstractA novel polyamide thin film nanofibrous composite (TFNC) membrane was fabricated by interfacial polymerization (IP) with a modified graphene oxide interlayer on highly porous electrospun polyacrylonitrile (PAN) nanofibrous substrate for isopropanol dehydration by pervaporation. Benefiting from the utilization of ethylenediamine modified graphene oxide (eGO) lamellae, which provided thin and relatively smooth surface but also reaction sites (amine groups) for interfacial polymerization, the resultant TFNC membranes exhibited an integrated structure with a compacter and thinner polyamide (PA) selective skin layer. Significantly, the skillful regulation of interfacial polymerization by the control of deposition amount of eGO on nanofibrous substrate enabled the strong interfacial interaction and the formation of compact selective layer, determining the augment of selectivity of TFNC membranes. The optimized PA/eGO/PAN integrated TFNC membranes exhibited an excellent separation performance for dehydrating 90 wt% aqueous isopropanol solution with remarkably enhanced separation factor (1866) and high permeate flux (4150 g/m(2) h) at 70 degrees C. This result was markedly superior to those of TFC membranes prepared by IP reported so far, suggesting an efficient and facile approach to fabricate high performance pervaporation membrane with unique structures.
KeywordModified graphene oxide interlayer Thin-film nanofibrous composite membrane Interfacial polymerization Pervaporation
DOI10.1016/j.memsci.2018.02.013
WOS KeywordGRAPHENE-OXIDE ; INTERFACIAL POLYMERIZATION ; NANOFILTRATION MEMBRANE ; PERVAPORATION SEPARATION ; ISOPROPANOL DEHYDRATION ; ETHANOL DEHYDRATION ; WATER-TRANSPORT ; HIGH-FLUX ; PERFORMANCE ; DESALINATION
Indexed BySCI ; EI
Language英语
WOS Research AreaEngineering ; Polymer Science
WOS SubjectEngineering, Chemical ; Polymer Science
WOS IDWOS:000428131700009
EI Accession Number20180904839318
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285749
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Cheng, C,Li, PY,Shen, K,et al. Integrated polyamide thin-film nanofibrous composite membrane regulated by functionalized interlayer for efficient water/isopropanol separation[J]. JOURNAL OF MEMBRANE SCIENCE,2018,553:70-81.
APA Cheng, C.,Li, PY.,Shen, K.,Zhang, TH.,Cao, XZ.,...&王宝义.(2018).Integrated polyamide thin-film nanofibrous composite membrane regulated by functionalized interlayer for efficient water/isopropanol separation.JOURNAL OF MEMBRANE SCIENCE,553,70-81.
MLA Cheng, C,et al."Integrated polyamide thin-film nanofibrous composite membrane regulated by functionalized interlayer for efficient water/isopropanol separation".JOURNAL OF MEMBRANE SCIENCE 553(2018):70-81.
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