Asymmetric structure and enhanced gas separation performance induced by in situ growth of silver nanoparticles in carbon membranes

The SBU of soc-MOF was in situ modified with imidazole (IM) molecules to construct the soc-MOF-IM polycrystalline membrane, which can be an efficient strategy to regulate the gas separation performance of MOF membranes.

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Retraction notice to “Enhanced gas separation performance using carbon membranes containing nanocrystalline cellulose and BTDA-TDI/MDI polyimide” [Chem. Eng. Res. Des. 140 (2018) 221–228]

Chemical Engineering Research and Design ◽

10.1016/j.cherd.2020.08.030 ◽

2020 ◽

Vol 163 ◽

pp. 262

Author(s):

N. Sazali ◽

W.N.W. Salleh ◽

A.F. Ismail ◽

N.H. Ismail ◽

Mohamad Azuwa Mohamed ◽

...

Keyword(s):

Gas Separation ◽

Nanocrystalline Cellulose ◽

Separation Performance ◽

Carbon Membranes ◽

Retraction Notice ◽

Gas Separation Performance

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Effects of Curing Method on the Gas Separation Performance of Phenolic Resin/Poly(vinyl Alcohol)-Based Carbon Membrane Materials

Materials Science Forum ◽

10.4028/www.scientific.net/msf.675-677.1185 ◽

2011 ◽

Vol 675-677 ◽

pp. 1185-1188

Author(s):

Bing Zhang ◽

Yong Hong Wu ◽

Tong Hua Wang ◽

Jie Shan Qiu ◽

Tie Jun Xu ◽

...

Keyword(s):

Thermal Stability ◽

Gas Separation ◽

Vinyl Alcohol ◽

Phenolic Resin ◽

Poly Vinyl Alcohol ◽

Separation Performance ◽

Carbon Membrane ◽

Carbon Membranes ◽

Curing Methods ◽

Gas Separation Performance

A novel cheap blended precursor phenolic resin/poly(vinyl alcohol) (PR/PVA) was developed to prepare carbon membranes. The effect of two curing methods (i.e., crosslinker and preoxidation) on the gas separation performance of their derived carbon membranes was investigated. Thermogravimetric analysis (TGA), Differential scanning calorimetry (DSC) and Fourier transform infrared (FTIR) spectroscopy were used to analyze the thermal stability of precursor and the changes in functional groups on membrane surface. The gas permeation of carbon membranes was tested for H2 and N2. The results show that PR, PR/PVA, and two PR/PVA cured samples have three thermal degradation stages. The thermal stability for original PR/PVA membrane is significantly improved via the method of preoxidation or crosslinker. Similar crosslinking structure is formed by the two curing methods. However, carbon membranes from crosslinker method present two-fold higher in hydrogen permeability and four-fold higher in selectivity than that from preoxidation method.

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Highly selective filler–polymer gaps in situ fabricated in mixed matrix membranes for gas separation

Journal of Materials Chemistry A ◽

10.1039/d0ta03378b ◽

2020 ◽

Vol 8 (24) ◽

pp. 11928-11932

Author(s):

Xuemeng Jia ◽

Zhihua Qiao ◽

Benqiao He ◽

Chongli Zhong

Keyword(s):

Gas Separation ◽

Self Assembly ◽

High Speed ◽

Mixed Matrix Membranes ◽

Separation Performance ◽

Mixed Matrix ◽

Transport Channels ◽

Gas Separation Performance ◽

Matrix Membranes

We report an interface self-assembly strategy to build high speed gas transport channels throughout mixed matrix membranes in situ using the gaps between hydrophilic polymers and hydrophobic fillers (normally considered as defects that lower the gas separation performance).

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