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Enhancement of NaA zeolite membrane properties through organic cation addition
Huang, Aisheng1; Yang, Weishen2; Huang AS(黄爱生); Yang WS(杨维慎)
KeywordNaa Zeolite Membrane Hydrothermal Synthesis Pervaporation Gas Permeation Organic Cation
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
2008-07-01
DOI10.1016/j.seppur.2007.10.011
Volume61Issue:2Pages:175-181
Indexed BySCI
SubtypeArticle
Department5
Funding Project504
Contribution Rank2;2
WOS HeadingsScience & Technology ; Technology
WOS SubjectEngineering, Chemical
WOS Research AreaEngineering
WOS KeywordA MEMBRANES ; PERVAPORATION ; SEPARATION ; MIXTURES ; SURFACE ; FILMS ; WATER
AbstractThin NaA zeolite membranes, with uniform and small crystals, were prepared on the tubular alpha-Al2O3 support by adding a small amount of tetramethylammonium hydroxide (TMAOH) in the clear synthesis solution. The as-synthesized NaA zeolite membranes were characterized by XRD and SEM. The permeation properties of the membranes were evaluated by pervaporation and gas permeation. The effects of TMAOH amount on membrane formation and permeation properties were investigated. By addition of suitable amount of TMAOH in the clear synthesis solution, the crystals size of NaA zeolite could be remarkably reduced from about 10 mu m to 3-4 mu m, and the membrane thickness correspondingly reduced from about 16 mu m to 5 mu m. The thinner membrane prepared by adding TMAOH in the clear synthesis solution, with uniform and small crystal, displayed higher perm-selective properties than that without adding TMAOH. For the as-synthesized NaA zeolite membrane prepared with adding suitable amount of TMAOH (x= 1), the separation factor (water/isopropanol) was 4700 and the flux was 1.67 kg/( m(2) h), which were higher than that without adding TMAOH of 339 and 1.08 kg/(m(2) h), respectively. The ideal separation factor of H-2/N-2 was 6.60, higher than that without adding TMAOH of 3.41. (c) 2007 Elsevier B.V. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000256334600009
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/101143
Collection中国科学院大连化学物理研究所
Corresponding AuthorHuang AS(黄爱生); Yang WS(杨维慎)
Affiliation1.Tongji Univ, Dept Chem, Shanghai 200092, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Huang, Aisheng,Yang, Weishen,Huang AS,et al. Enhancement of NaA zeolite membrane properties through organic cation addition[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2008,61(2):175-181.
APA Huang, Aisheng,Yang, Weishen,黄爱生,&杨维慎.(2008).Enhancement of NaA zeolite membrane properties through organic cation addition.SEPARATION AND PURIFICATION TECHNOLOGY,61(2),175-181.
MLA Huang, Aisheng,et al."Enhancement of NaA zeolite membrane properties through organic cation addition".SEPARATION AND PURIFICATION TECHNOLOGY 61.2(2008):175-181.
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