电场辅助制备多壁碳纳米管/聚苯乙烯复合膜的气体分离性能
Electric field-assisted preparation of aligned MWCNTs/polystyrene composite membranes for enhanced gas separation performance
查看参考文献41篇
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文摘
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采用溶液浇铸法制备了不同含量多壁碳纳米管(MWCNTs)和聚苯乙烯(PS)掺杂的气体分离复合膜,成膜过程中在垂直于铸膜液平面的方向上施加场强为2000 V·cm~(-1),频率为1 Hz的交变电场,直至溶剂挥发完全。采用荧光分光光度计、体式显微镜和数字万用表考察了膜的荧光特性,铸膜液中MWCNTs对水平电场的响应,MWCNTs在膜中的分散情况以及膜的垂直向电阻率,测定了复合膜对CO_2、CH_4的渗透系数。结果表明电场作用不仅可以实现MWCNTs在膜中的定向排布,还能够使MWCNTs在膜中分散得更均匀,定向复合膜CO_2和CH_4的透过性和选择性都优于非定向复合膜。 |
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其他语种文摘
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Incorporation of particulate fillers in a membrane matrix has been proven effective in improving the separation performance of the membrane. This study explored the possibility of casting fillers embedded membranes with the assistance of alternating electric field to further improve the membrane performance in gas separation. Composite membranes with varying contents of multi-walled carbon nanotubes (MWCNTs) dispersed in polystyrene (PS) were prepared. In order to align the MWCNTs in the membrane, an alternating electric field of 2000 V·cm~(-1), 1 Hz was vertically applied on the pre-membrane solution until the solvent was evaporated completely. Electro-casting achieved not only vertical alignment but also more uniform dispersion of MWCNTs in the membrane matrix. The electro-cast composite membranes showed higher permeability of both carbon dioxide and methane, but the increment of the former was higher than the latter, resulting in improved selectivity of the membrane. |
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来源
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化工学报
,2014,65(1):337-345 【核心库】
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DOI
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10.3969/j.issn.0438-1157.2014.01.044
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关键词
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碳纳米管
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复合膜
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电场
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定向
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分离
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二氧化碳
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甲烷
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地址
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天津大学化工学院, 化学工程联合国家重点实验室, 天津, 300072
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0438-1157 |
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学科
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化学工业 |
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基金
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国家自然科学基金项目
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天津市自然科学基金
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文献收藏号
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CSCD:5033875
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参考文献 共
41
共3页
|
|
1.
Buonomenna M G. Some approaches for high performance polymer based membranes for gas separation: block copolymers, carbon molecular sieves and mixed matrix membranes.
RSC Adv,2012,29(2):10745-10773
|
被引
1
次
|
|
|
|
|
2.
Budd P M. Highly permeable polymers for gas separation membranes.
Polym. Chem,2010,1(1):63-68
|
被引
6
次
|
|
|
|
|
3.
Robeson L M. Correlation of separation factor versus permeability for polymeric membranes.
J. Membr. Sci,1991,62(12):165-185
|
被引
108
次
|
|
|
|
|
4.
Aroon M A. Performance studies of mixed matrix membranes for gas separation: a review.
Sep. Purif. Technol,2010,75(3):229-242
|
被引
16
次
|
|
|
|
|
5.
Chung T S. Mixed matrix membranes (MMMs) comprising organic polymers with dispersed inorganic fillers for gas separation.
Prog. Polym. Sci,2007,32(4):483-507
|
被引
46
次
|
|
|
|
|
6.
Cong H L. Polymer-inorganic nanocomposite membranes for gas separation.
Sep. Purif.Technol,2007,55(3):281-291
|
被引
13
次
|
|
|
|
|
7.
Goh P S. Recent advances of inorganic fillers in mixed matrix membrane for gas separation.
Sep. Purif. Technol,2011,81(3):243-264
|
被引
20
次
|
|
|
|
|
8.
Romero A I. Synthesis of polyetherimide/silica hybrid membranes by the sol-gel process: influence of the reaction conditions on the membrane properties.
J. Mater. Sci,2011,46(13):4701-4709
|
被引
3
次
|
|
|
|
|
9.
Ismail A F. Gas separation performance of polyethersulfone/ multi-walled carbon nanotubes mixed matrix membranes.
Sep. Purif. Technol,2011,80(1):20-31
|
被引
3
次
|
|
|
|
|
10.
Kumar S. Enhancement of hydrogen gas permeability in electrically aligned MWCNT-PMMA composite membranes.
Micron,2010,41(7):909-914
|
被引
2
次
|
|
|
|
|
11.
Ruan S L. Toughening high performance ultrahigh molecular weight polyethylene using multiwalled carbon nanotubes.
Polymer,2003,44(19):5643-5654
|
被引
17
次
|
|
|
|
|
12.
Ismail A F. Transport and separation properties of carbon nanotube-mixed matrix membrane.
Sep. Purif. Technol,2009,70(1):12-26
|
被引
19
次
|
|
|
|
|
13.
Sanip S M. Preparation and characteristics of functionalized multiwalled carbon nanotubes in polyimide mixed matrix membrane.
NANO,2010,5(4):195-202
|
被引
2
次
|
|
|
|
|
14.
Kim S. Poly(imide siloxane) and carbon nanotube mixed matrix membranes for gas separation.
Desalination,2006,192(1/2/3):330-339
|
被引
11
次
|
|
|
|
|
15.
Skoulidas A I. Rapid transport of gases in carbon nanotubes.
Phys. Rev. Lett,2002,89(18):185901
|
被引
16
次
|
|
|
|
|
16.
Ackerman D M. Diffusivities of Ar and Ne in carbon nanotubes.
Mol. Simul,2003,29(10/11):677-684
|
被引
4
次
|
|
|
|
|
17.
Skoulidas A I. Adsorption and diffusion of carbon dioxide and nitrogen through single-walled carbon nanotube membranes.
J. Chem. Phys,2006,124(5):054708
|
被引
7
次
|
|
|
|
|
18.
Sokhan V P. Fluid flow in nanopores: accurate boundary conditions for carbon nanotubes.
J. Chem. Phys,2002,117(18):8531-8539
|
被引
8
次
|
|
|
|
|
19.
Ge L. Investigation of gas permeability in carbon nanotube (CNT)-polymer matrix membranes via modifying CNTs with functional groups/metals and controlling modification location.
J. Phys. Chem. C,2011,115(14):6661-6670
|
被引
2
次
|
|
|
|
|
20.
Romyen N. Alignment of carbon nanotubes in polyimide under electric and magnetic fields.
J. Appl. Polym. Sci,2012,123(6):3470-3475
|
被引
4
次
|
|
|
|
|
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