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题名: Effects of aging on the synthesis and performance of silicalite membranes on silica tubes without seeding
作者: Chen, Hongliang;  Song, Chunshan;  Yang, Weishen
通讯作者: 杨维慎
关键词: zeolite membrane ;  silicalite membrane ;  ethanol/water separation ;  pervaporation ;  aging effects
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2007-05-04
DOI: 10.1016/j.micromeso.2006.12.043
卷: 102, 期:1-3, 页:249-257
收录类别: SCI
文章类型: Article
部门归属: 5
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: High-performance silicalite membranes were successfully prepared on porous tubular silica supports by in situ hydrothermal synthesis without seeding. The separation performance of the as-synthesized silicalite membranes was evaluated by separating ethanol/water mixtures. It was found that both the aging temperature and aging time had a significant influence on the performance of silicalite membranes when the silica tubes and synthesis solution were aged together. The tubular silica supports were filled with glycerol/water mixtures to reduce the penetration of synthesis solution, and it was found that this solution-filling method could effectively improve the membrane flux by about 27% with a higher separation factor. By using two-step hydrothermal synthesis, the silicalite membrane with a total flux of 0.58 kg/M-2 h and ethanol/water separation factor of 95 at 333 K was obtained. The method in this work has been demonstrated a simple and effective way to skip the deposition of pre-formed nanosized seeds on tubular supports before the secondary growth of silicalite membrane. (C) 2007 Elsevier Inc. All rights reserved.
关键词[WOS]: ZEOLITE ZSM-5 MEMBRANES ;  MFI MEMBRANES ;  TEMPERATURE SYNTHESIS ;  PERVAPORATION ;  SEPARATION ;  NUCLEATION ;  CRYSTALLIZATION ;  OPTIMIZATION ;  PERMEATION ;  SCATTERING
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000246727900025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99403
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.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Penn State Univ, University Pk, PA 16802 USA

Recommended Citation:
Chen, Hongliang,Song, Chunshan,Yang, Weishen. Effects of aging on the synthesis and performance of silicalite membranes on silica tubes without seeding[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2007,102(1-3):249-257.
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