Improved performance of PDMS/silicalite-1 pervaporation membranes via designing new silicalite-1 particles
文献类型：期刊论文
| 作者 | Zhuang, Xiaojie1,2; Chen, Xiangrong1; Su, Yi1; Luo, Jianquan1; Cao, Weifeng1; Wan, Yinhua1 |
| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 2015-11-01 |
| 卷号 | 493期号:NOV页码:37-45 |
| 关键词 | Pervaporation Silicalite-1 PDMS Separation factor Ethanol separation |
| ISSN号 | 0376-7388 |
| 英文摘要 | In order to improve the separation performance of pervaporation (PV) membranes, different silicalite-1 particles were prepared by hydrothermal synthesis in fluoride (F) or alkaline (OH) media, and then incorporated into polydimethysiloxane (PDMS) to prepare PDMS/silicalite-1 PV membranes. These silicalite-1 particles were characterized by SEM, FT-IR, NMR, XRD, BET and IGA. The results indicated that, compared with the silicalite-1(OH), the silicalite-1(F) particles had much less silanol groups and were more hydrophobic, thus showing higher selectivity to ethanol. Accordingly, the separation factor (ethanol/water) of the PDMS/silicalite-1(F) membrane was much higher than that of PDMS/silicalite-1 (OH) membrane at the same silicalite-1 loading. For the PDMS/silicalite-1(OH) membrane, the highest separation factor (23.0) was obtained at 60 wt% silicalite-1 loading, while it was found to be 23.8 at 40 wt% silicalite-1 loading for the PDMS/silicalite-1(F) membrane. However, due to the larger size of the silicalite-1(F) particles, its maximal loading (40 wt%) in PDMS was lower than that of the silicalite-1(OH) particles (60 wt.%). In order to Lake advantage of the higher selectivity of silicalite-1(F) particles and the higher loading of silicalite-1(OH), these two kinds of silicalite-1 particles were mixed and incorporated into PDMS. Using this new strategy, the total loading of the silicalite-1 particles could be up to 60 wt%, and the separation factor of such membrane increased to 28.9 when he partial loading of silicalite-1 (F) was 30 wt%. The effects of feed temperature and ethanol concentration on this new PDMS/silicalite-1 (F)-silicalite-1(OH) membrane were also investigated. The results demonstrated that the incorporation of the mixed silicalite-1(F) and silicalite-1(OH) particles into PDMS could be a promising method for the preparation of high performance PV membranes. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Chemical ; Polymer Science |
| 研究领域[WOS] | Engineering ; Polymer Science |
| 关键词[WOS] | MIXED MATRIX MEMBRANES ; ALCOHOL PERMSELECTIVE PERVAPORATION ; SILICONE-RUBBER MEMBRANES ; COMPOSITE MEMBRANES ; AQUEOUS-SOLUTIONS ; SURFACE-MODIFICATION ; N-BUTANOL ; HIGH-FLUX ; ETHANOL ; ZEOLITE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000360554300005 |
| 公开日期 | 2015-12-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/19514]  |
| 专题 | 过程工程研究所_生化工程国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhuang, Xiaojie,Chen, Xiangrong,Su, Yi,et al. Improved performance of PDMS/silicalite-1 pervaporation membranes via designing new silicalite-1 particles[J]. JOURNAL OF MEMBRANE SCIENCE,2015,493(NOV):37-45. |
| APA | Zhuang, Xiaojie,Chen, Xiangrong,Su, Yi,Luo, Jianquan,Cao, Weifeng,&Wan, Yinhua.(2015).Improved performance of PDMS/silicalite-1 pervaporation membranes via designing new silicalite-1 particles.JOURNAL OF MEMBRANE SCIENCE,493(NOV),37-45. |
| MLA | Zhuang, Xiaojie,et al."Improved performance of PDMS/silicalite-1 pervaporation membranes via designing new silicalite-1 particles".JOURNAL OF MEMBRANE SCIENCE 493.NOV(2015):37-45. |
入库方式： OAI收割
来源：过程工程研究所
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