Knudsen diffusion through ZIF-8 membranes synthesized by secondary seeded growth

被引：29

作者：

Venna, Surendar R. ^{[1
]}

Zhu, Minqi ^{[1
]}

Li, Shiguang ^{[1
]}

Carreon, Moises A. ^{[1
]}

机构：

[1] Univ Louisville, Dept Chem Engn, Louisville, KY 40292 USA

来源：

JOURNAL OF POROUS MATERIALS | 2014年 / 21卷 / 02期

基金：

美国国家科学基金会;

关键词：

Metal organic frameworks; ZIF-8; Membranes; Gas separations; ZEOLITIC IMIDAZOLATE FRAMEWORKS; MOLECULAR-SIEVE MEMBRANE; METAL-ORGANIC FRAMEWORK; SEPARATION; CO2; FUNCTIONALIZATION; TEMPERATURE; PERMEATION; MIXTURES; CH4;

D O I：

10.1007/s10934-013-9768-1

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Herein we demonstrate the synthesis of ZIF-8 membranes via secondary seeded growth on tubular stainless steel porous supports. The membranes were characterized and evaluated for the separation of CO2/N-2 and N-2/CH4 gas mixtures. The adsorbate polarizability correlated with the adsorption capacity on ZIF-8, and the amounts of gases adsorbed were in the order: CO2 > CH4 > N-2. The CO2/N-2 separation selectivity's for the ZIF-8 membranes were close to the Knudsen selectivity, suggesting that Knudsen diffusion through non-ZIF pores dominated the separation. On the other hand, the separation selectivity's for N-2/CH4 were slightly higher than the Knudsen selectivity, indicating that the flow contribution from the ZIF pores favored the transport of N-2 over CH4.

引用

页码：235 / 240

页数：6

共 33 条

[21] Synthesis of highly c-oriented ZIF-69 membranes by secondary growth and their gas permeation properties [J].

Liu, Yunyang ;

Zeng, Gaofeng ;

Pan, Yichang ;

Lai, Zhiping .

JOURNAL OF MEMBRANE SCIENCE, 2011, 379 (1-2) :46-51

[22] Synthesis and characterization of ZIF-69 membranes and separation for CO2/CO mixture [J].

Liu, Yunyang ;

Hu, Enping ;

Khan, Easir A. ;

Lai, Zhiping .

JOURNAL OF MEMBRANE SCIENCE, 2010, 353 (1-2) :36-40

[23] Synthesis of Zeolitic Imidazolate Framework Films and Membranes with Controlled Microstructures [J].

McCarthy, Michael C. ;

Varela-Guerrero, Victor ;

Barnett, Gregory V. ;

Jeong, Hae-Kwon .

LANGMUIR, 2010, 26 (18) :14636-14641

[24] Crystals as molecules: Postsynthesis covalent functionalization of zeolitic imidazolate frameworks [J].

Morris, William ;

Doonan, Christian J. ;

Furukawa, Hiroyasu ;

Banerjee, Rahul ;

Yaghi, Omar M. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (38) :12626-+

[25] Sharp separation of C2/C3 hydrocarbon mixtures by zeolitic imidazolate framework-8 (ZIF-8) membranes synthesized in aqueous solutions [J].

Pan, Yichang ;

Lai, Zhiping .

CHEMICAL COMMUNICATIONS, 2011, 47 (37) :10275-10277

[26] Exceptional chemical and thermal stability of zeolitic imidazolate frameworks [J].

Park, Kyo Sung ;

Ni, Zheng ;

Cote, Adrien P. ;

Choi, Jae Yong ;

Huang, Rudan ;

Uribe-Romo, Fernando J. ;

Chae, Hee K. ;

O'Keeffe, Michael ;

Yaghi, Omar M. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (27) :10186-10191

[27] Synthesis, Structure, and Carbon Dioxide Capture Properties of Zeolitic Imidazolate Frameworks [J].

Phan, Anh ;

Doonan, Christian J. ;

Uribe-Romo, Fernando J. ;

Knobler, Carolyn B. ;

O'Keeffe, Michael ;

Yaghi, Omar M. .

ACCOUNTS OF CHEMICAL RESEARCH, 2010, 43 (01) :58-67

[28] Temperature and pressure effects on CO2 and CH4 permeation through MFI zeolite membranes [J].

Poshusta, JC ;

Noble, RD ;

Falconer, JL .

JOURNAL OF MEMBRANE SCIENCE, 1999, 160 (01) :115-125

[29] Highly Permeable Zeolite Imidazolate Framework-8 Membranes for CO2/CH4 Separation [J].

Venna, Surendar R. ;

Carreon, Moises A. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (01) :76-+

[30] Colossal cages in zeolitic imidazolate frameworks as selective carbon dioxide reservoirs [J].

Wang, Bo ;

Cote, Adrien P. ;

Furukawa, Hiroyasu ;

O'Keeffe, Michael ;

Yaghi, Omar M. .

NATURE, 2008, 453 (7192) :207-U6

← 1 2 3 4 →