Pore Size Determination of Supported Organic-Inorganic Hybrid Membranes by Modified Gas Permeation Method

The pore structure of supported organic-inorganic hybrid membranes was tested by modified gas permeation method. The results were discussed and compared with gas separation performances of the membrane. For the intermediate layer, the pore size is 225nm, which is in relatively good continent with the SEM observation. The pore size of SiO2/C6H5 organic-inorganic hybrid layer is 40-50nm, which is a little bigger compared with the gas separation performances. And for the SiO2/C6H5/MMA organic-inorganic hybrid layer, the pore is 24nm, which is close to the gas separation performances.

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Pore Size Determination of Supported Organic-Inorganic Hybrid Membranes by Modified Gas Permeation Method

High-Performance Ceramics III - Key Engineering Materials ◽

10.4028/0-87849-959-8.881 ◽

2007 ◽

pp. 881-886

Author(s):

G.C. Zhang ◽

Bao Qing Zhang ◽

Xu Ping Lin ◽

Yun Fa Chen ◽

Yu Xheng Xie

Keyword(s):

Pore Size ◽

Gas Permeation ◽

Hybrid Membranes ◽

Size Determination ◽

Inorganic Hybrid

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Effect of polyether diamine on gas permeation properties of organic-inorganic hybrid membranes

Journal of Sol-Gel Science and Technology ◽

10.1007/s10971-007-1553-7 ◽

2007 ◽

Vol 43 (1) ◽

pp. 35-40 ◽

Cited By ~ 13

Author(s):

Chunwon Lim ◽

Suk-In Hong ◽

Hyunjoon Kim

Keyword(s):

Gas Permeation ◽

Hybrid Membranes ◽

Inorganic Hybrid ◽

Permeation Properties

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Mean pore size determination of samples adhered to impermeable substrates

Filtration + Separation ◽

10.1016/s0015-1882(97)84792-1 ◽

1997 ◽

Vol 34 (3) ◽

pp. 225-229

Keyword(s):

Pore Size ◽

Size Determination

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Stabilities and pore size effect of proton-conducting organic–inorganic hybrid membranes prepared through surface modification of porous glasses

Journal of Membrane Science ◽

10.1016/j.memsci.2005.03.022 ◽

2005 ◽

Vol 259 (1-2) ◽

pp. 161-166 ◽

Cited By ~ 13

Author(s):

Takashi Kikukawa ◽

Koji Kuraoka ◽

Kazuhiro Kawabe ◽

Masaru Yamashita ◽

Kohei Fukumi ◽

...

Keyword(s):

Surface Modification ◽

Size Effect ◽

Pore Size ◽

Hybrid Membranes ◽

Inorganic Hybrid ◽

Proton Conducting ◽

Porous Glasses

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Investigation of the silica pore size effect on the performance of polysulfone (PSf) mixed matrix membranes (MMMs) for gas separation

Journal of Polymer Engineering ◽

10.1515/polyeng-2021-0055 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Gholamhossein Vatankhah ◽

Babak Aminshahidy

Keyword(s):

Mesoporous Silica ◽

Pore Size ◽

Gas Separation ◽

Gas Permeation ◽

Mixed Matrix Membranes ◽

Separation Performance ◽

Mixed Matrix ◽

Small Pore ◽

Mcm 41 ◽

Matrix Membranes

Abstract MCM-41 and SBA-15 mesoporous silica materials with different pore sizes (3.08 nm for small pore size MCM-41 (P 1), 5.89 nm for medium pore size SBA-15 (P 2), and 7.81 nm for large pore size SBA-15 (P 3)) were synthesized by the hydrothermal method and then functionalized with 3-aminopropyltrietoxysilane by postsynthesis treatments. Next, polysulfone-mesoporous silica mixed matrix membranes (MMMs) were prepared by the solution casting method. The obtained materials and MMMs were characterized by various techniques including X-ray diffraction, scanning electron microscopy, and N2 adsorption-desorption, and Brunauer-Emmett-Teller method to examine the crystallinity, morphology, and particle size, pore volume, specific surface area, and pore size distribution, respectively. Finally, the gas permeation rates of prepared MMMs were measured in 8 bar and 25 °C and the effect of pore size of modified and unmodified mesoporous silica on the gas separation performance of these MMMs were investigated. The experimental results indicate that the carbon dioxide (CO2) and methane (CH4) permeability and CO2/CH4 selectivity were increased with an enhancement in the particle pore size.

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