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题名: Microwave-assisted hydrothermal synthesis of hydroxy-sodalite zeolite membrane
作者: Xu, XC;  Bao, Y;  Song, CS;  Yang, WS;  Liu, J;  Lin, LW
关键词: gas separation ;  hydrothermal synthesis ;  hydroxy-sodalite ;  microwave heating ;  zeolite membrane
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2004-11-02
DOI: 10.1016/j.micromeso.2004.07.019
卷: 75, 期:3, 页:173-181
收录类别: SCI
文章类型: Article
项目归属: 504
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: A high quality pure hydroxy-sodalite zeolite membrane was successfully synthesized on an alpha-Al2O3 support by a novel microwave-assisted hydrothermal synthesis (MARS) method. Influence of synthesis conditions, such as synthesis time, synthesis procedure, etc., on the formation of hydroxy-sodalite zeolite membrane by MAHS method was studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and gas permeation measurements. The synthesis of hydroxy-sodalite zeolite membrane by MAHS method only needed 45 min and synthesis was more than 8 times faster than by the conventional hydrothermal synthesis (CHS) method. A pure hydroxy-sodalite zeolite membrane was easily synthesized by MAHS method, while a zeolite membrane, which consisted of NaX zeolite, NaA zeolite and hydroxy-sodalite zeolite, was usually synthesized by CHS method. The effect of preparation procedures had a dramatic impact on the formation of hydroxy-sodalite zeolite membrane and a single-stage synthesis procedure produced a pure hydroxy-sodalite zeolite membrane. The pure hydroxy-sodalite zeolite membrane synthesized by MARS method was found to be well inter-grown and the thickness of the membrane was 6-7 mum. Gas permeation results showed that the hydrogen/n-butane permselectivity of the hydroxy-sodalite zeolite membrane was larger than 1000. (C) 2004 Elsevier Inc. All rights reserved.
关键词[WOS]: MOLECULAR-SIEVE MEMBRANES ;  GAS PERMEATION PROPERTIES ;  INORGANIC MEMBRANES ;  COMPOSITE MEMBRANES ;  MFI MEMBRANES ;  SEPARATION ;  ALPO4-5 ;  PERFORMANCE ;  IRRADIATION ;  CRYSTALS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000224824900001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/81785
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Penn State Univ, Energy Inst, Clean Fuels & Catalysis Program, University Pk, PA 16802 USA
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Xu, XC,Bao, Y,Song, CS,et al. Microwave-assisted hydrothermal synthesis of hydroxy-sodalite zeolite membrane[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2004,75(3):173-181.
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