Improving the hydrogen selectivity of graphene oxide membranes by reducing non-selective pores with intergrown ZIF-8 crystals

2016 ◽  
Vol 52 (52) ◽  
pp. 8087-8090 ◽  
Author(s):  
Xuerui Wang ◽  
Chenglong Chi ◽  
Jifang Tao ◽  
Yongwu Peng ◽  
Shaoming Ying ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Gas Separation ◽  
Separation Performance ◽  
Hydrogen Selectivity ◽  
Oxide Membranes ◽  
Gas Separation Performance ◽  
Graphene Oxide Membranes

The large defects of graphene oxide membranes were reduced by the intergrown ZIF-8 crystals, affording dramatically increased gas separation performance.

scholarly journals Recent Advances in Graphene Oxide Membranes for Gas Separation Applications

2019 ◽  
Vol 20 (22) ◽  
pp. 5609 ◽  
Author(s):  
Saif Khan Alen ◽  
SungWoo Nam ◽  
Seyed A. Dastgheib
Keyword(s):  
Graphene Oxide ◽  
Gas Separation ◽  
High Performance ◽  
Separation Performance ◽  
Narrow Pore Size Distribution ◽  
Different Types ◽  
Oxide Membranes ◽  
Molecular Sieving ◽  
Gas Separation Performance ◽  
Graphene Oxide Membranes

Graphene oxide (GO) can dramatically enhance the gas separation performance of membrane technologies beyond the limits of conventional membrane materials in terms of both permeability and selectivity. Graphene oxide membranes can allow extremely high fluxes because of their ultimate thinness and unique layered structure. In addition, their high selectivity is due to the molecular sieving or diffusion effect resulting from their narrow pore size distribution or their unique surface chemistry. In the first part of this review, we briefly discuss different mechanisms of gas transport through membranes, with an emphasis on the proposed mechanisms for gas separation by GO membranes. In the second part, we review the methods for GO membrane preparation and characterization. In the third part, we provide a critical review of the literature on the application of different types of GO membranes for CO2, H2, and hydrocarbon separation. Finally, we provide recommendations for the development of high-performance GO membranes for gas separation applications.

Synthesis and gas permselectivity of CuBTC–GO–PVDF mixed matrix membranes

2018 ◽  
Vol 42 (14) ◽  
pp. 12013-12023 ◽  
Author(s):  
Elahe Ahmadi Feijani ◽  
Hossein Mahdavi ◽  
Ahmad Tavassoli
Keyword(s):  
Graphene Oxide ◽  
Gas Separation ◽  
Metal Organic Framework ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Metal Organic ◽  
Gas Separation Performance ◽  
Organic Framework ◽  
Matrix Membranes

A CuBTC (copper(ii) benzene-1,3,5-tricarboxylate) metal organic framework (MOF) and graphene oxide (GO) nanosheets were introduced into a semi-crystalline PVDF to produce mixed matrix membranes (MMMs) to promote gas separation performance.

Study on the separation performance of the multi-channel reduced graphene oxide membranes

2016 ◽  
Vol 384 ◽  
pp. 279-286 ◽  
Author(s):  
Yongjiao Zhao ◽  
Chun Li ◽  
Xiaoyan Fan ◽  
Jiesheng Wang ◽  
Guang Yuan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Separation Performance ◽  
Reduced Graphene ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Heterostructured graphene oxide membranes with tunable water-capture coatings for highly selective water permeation

2021 ◽  
Author(s):  
Zhiming Zhang ◽  
Hong Wu ◽  
Ying Li ◽  
Yue Liu ◽  
Chenliang Cao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Water Transport ◽  
Great Promise ◽  
Separation Performance ◽  
Water Permeation ◽  
Membrane Surfaces ◽  
Molecular Separations ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Graphene oxide (GO) laminar membranes with fast water-transport nanochannels hold great promise for water-selective molecular separations, but the water-capture ability of membrane surfaces limits the separation performance. Herein, we engineered...

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