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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)
关键词Naa Zeolite Membrane Hydrothermal Synthesis Pervaporation Gas Permeation Organic Cation
刊名SEPARATION AND PURIFICATION TECHNOLOGY
2008-07-01
DOI10.1016/j.seppur.2007.10.011
61期:2页:175-181
收录类别SCI
文章类型Article
部门归属5
项目归属504
产权排名2;2
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Chemical
研究领域[WOS]Engineering
关键词[WOS]A MEMBRANES ; PERVAPORATION ; SEPARATION ; MIXTURES ; SURFACE ; FILMS ; WATER
英文摘要Thin 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.
语种英语
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WOS记录号WOS:000256334600009
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/101143
专题中国科学院大连化学物理研究所
通讯作者Huang AS(黄爱生); Yang WS(杨维慎)
作者单位1.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
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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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