Graphene oxide nanosheets to improve permeability and selectivity of PIM-1 membrane for carbon dioxide separation
Graphene oxide nanosheets to improve permeability and selectivity of PIM-1 membrane for carbon dioxide separation
复制标题
氧化石墨烯纳米片可提高用于二氧化碳分离的 PIM-1 膜的渗透性和选择性
DOI：
10.1016/j.jiec.2018.02.030
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发表时间：
2018-07
影响因子：
6.1
通讯作者：
Qinglin Liu
中科院分区：
文献类型：
--
作者：
Mengmeng Chen;Faizal Soyekwo;Qiugen Zhang;Chuan Hu;Aimei Zhu;Qinglin Liu
具有固有微孔性的聚合物由于其高渗透性而在气体分离膜中引起了越来越多的关注。然而，中等的选择性限制了它们在CO2分离中的广泛应用。本文报道了一种利用PIM-1/氧化石墨烯（GO）纳米片混合基质膜同时提高PIM膜渗透性和CO2选择性的简单方法。GO纳米片改善了PIM-1膜的亲水性和表面粗糙度，而GO纳米片在PIM-1基质中的均匀组装在膜中产生亲水/疏水微相分离。如此制备的混合基质膜也是非常多孔的，并且具有约0.78nm的孔径。这些性能的组合显著地有助于提高PIM-1膜的气体分离性能，所得膜表现出高达6169 barrer的异常高的CO2渗透率以及高达123.5的高CO2/N2选择性，这是纯PIM-1膜的7倍多。所研制的PIM-1/GO混合基质膜在CO2分离中具有广阔的应用前景。
Polymers of intrinsic microporosity (PIMs) have attracted increasing interest in gas separation membranes due to their high permeability. However, the moderate selectivity limits their wide applications in CO2separation. Herein we report a facile strategy to improve simultaneously the permeability and CO2selectivity of PIMs membrane using the prepared PIM-1/graphene oxide (GO) nanosheets mixed matrix membrane. The GO nanosheets improves the hydrophilicity and surface roughness of PIM-1 membrane whereas the uniform assembly of GO nanosheets in the PIM-1 matrix creates the hydrophilic/hydrophobic microphase segregation in the membrane. The as-prepared mixed matrix membrane is also very porous and has a pore size of about 0.78 nm. The combination of these properties significantly contributes to the enhancement of the gas separation performance of PIM-1 membrane, with the resultant membrane exhibiting an exceptionally high CO2permeability of up to 6169 barrer as well as a high CO2/N2selectivity of 123.5, which is more than 7 times that of the pure PIM-1 membrane. The developed PIM-1/GO mixed matrix membrane should have a wide application in the CO2separation.
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影响因子：
46.2
作者：
Seoane B;Coronas J;Gascon I;Etxeberria Benavides M;Karvan O;Caro J;Kapteijn F;Gascon J
通讯作者：
Gascon J
影响因子：
4.9
作者：
Karunakaran, M.;Shevate, R.;Peinemann, K. -V.
通讯作者：
Peinemann, K. -V.
影响因子：
9.5
作者：
Zhizhang Tian;Shaofei Wang;Yutong Wang;Xiaorui Ma;K. Cao;Dongdong Peng;Xingyu Wu;Hong Wu;Zhongyi Jiang
通讯作者：
Zhizhang Tian;Shaofei Wang;Yutong Wang;Xiaorui Ma;K. Cao;Dongdong Peng;Xingyu Wu;Hong Wu;Zhongyi Jiang
DOI：
10.1002/polb.23689
发表时间：
2015-05
期刊：
Journal of Polymer Science Part B
影响因子：
--
作者：
C. Scholes;Jianyong Jin;G. Stevens;S. Kentish
通讯作者：
C. Scholes;Jianyong Jin;G. Stevens;S. Kentish
影响因子：
5.5
作者：
Ghanem, Bader S.;McKeown, Neil B.;Yampolskii, Yuri
通讯作者：
Yampolskii, Yuri