Molecular Perspective of Radionuclides Separation by Nanoporous Graphene Oxide Membrane

2016 ◽  
Vol 11 (1) ◽  
pp. 3-5 ◽  
Author(s):  
Masoud Arabieh ◽  
S. Mahmood Fatemi ◽  
Hamid Sepehrian
Keyword(s):  
Graphene Oxide ◽  
Md Simulation ◽  
Oil Industry ◽  
Diffusion Flow ◽  
Nanoporous Graphene ◽  
Gas Molecules ◽  
Oxide Membrane ◽  
Oxide Membranes ◽  
Molecular Sieving ◽  
Graphene Oxide Membranes

Abstract Graphene-derived membranes has gained much interest recently due to its promising potential in filtration and separation applications. Molecular Sieving phenomena of gas molecules in the interlayer of graphene oxide nanopore have been investigated using molecular dynamic (MD) simulation. We explore I-129 gas radionuclides sequestration from natural air in nanoporous graphene oxide membranes in which different sizes and geometries of pores were modeled on the graphene oxide sheet. In the present work, mean-squared displacement (MSD), diffusion, flow of gas and the number of crossed gas molecules through graphene oxide nanopore membrane have been calculated and the results showed, selective proper nanopores in graphene oxide membrane could dramatically improve separation. The aim of this paper is to show that for the well-defined pore size called P-12, it is possible to separate I-129 from a gas mixture containing I-129, O2 and N2. The results would be benefited by the oil industry and others.

scholarly journals Recent Advances in Graphene Oxide Membranes for Water desalination

2021 ◽  
Vol 308 ◽  
pp. 01023
Author(s):  
Zhihua Li ◽  
Yuerong Tian
Keyword(s):  
Graphene Oxide ◽  
Water Desalination ◽  
Mixed Matrix Membrane ◽  
Effective Technique ◽  
Freshwater Resources ◽  
Important Challenge ◽  
Nanoporous Graphene ◽  
Oxide Membrane ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Freshwater is one of the most important sources in daily life. However, freshwater resources are very scarce at present. As a consequence, water desalination remains an important challenge in solving the problem of the shortage of freshwater resources. As an effective technique, membrane-based desalination has been developed to be a mature solution to solve the problem of water desalination. Graphene oxide membranes have been considered important membrane materials for water desalination due to their high stability and high hydrophilicity. In such review, this paper will introduce three kinds of recently-developed graphene oxide membranes for water desalination, which respectively are mixed matrix membrane, reduced nanoporous graphene oxide membrane, and GO/C60 membrane. Firstly, the structure and characteristics of each membrane are introduced; then, the processes of how to make these membranes are described. Additionally, this study compares them with other novel methods for water desalination. In the end, on the basis of graphene oxide membranes, it could be seen that these three membranes are more promising.

scholarly journals Strict molecular sieving over electrodeposited 2D-interspacing-narrowed graphene oxide membranes

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Benyu Qi ◽  
Xiaofan He ◽  
Gaofeng Zeng ◽  
Yichang Pan ◽  
Guihua Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxide Membranes ◽  
Molecular Sieving ◽  
Graphene Oxide Membranes

Graphene oxide membranes with narrow inter-sheet galleries for enhanced hydrogen separation

2019 ◽  
Vol 55 (21) ◽  
pp. 3077-3080 ◽  
Author(s):  
Amr F. M. Ibrahim ◽  
Fateme Banihashemi ◽  
Y. S. Lin
Keyword(s):  
Graphene Oxide ◽  
Packing Density ◽  
Hydrogen Separation ◽  
Permeability Reduction ◽  
Pressure Filtration ◽  
Gas Molecules ◽  
Oxide Membranes ◽  
Filtration Permeability ◽  
Graphene Oxide Membranes

Brodie's GO sheets are prepared, characterized and compared to Hummers’ GO sheets. GO-B membranes are synthesized on polyester substrates using filtration. Permeability reduction of large gas molecules (CH4, N2 and CO2) is more significant compared to permeability reduction of small gas molecules (H2 and He). Pressure filtration enhances the packing density of GO-B sheets.

scholarly journals Self-assembly of 2D-metal–organic framework/graphene oxide membranes as highly efficient adsorbents for the removal of Cs+ from aqueous solutions

RSC Advances ◽  
2018 ◽  
Vol 8 (71) ◽  
pp. 40813-40822 ◽  
Author(s):  
Junye Cheng ◽  
Jie Liang ◽  
Liubing Dong ◽  
Jixing Chai ◽  
Ning Zhao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Self Assembly ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Highly Efficient ◽  
Metal Organic ◽  
Oxide Membrane ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

A 2D-metal–organic frameworks/graphene oxide membrane that combines the electrostatic self-assembly of electronegative GO sheets and electropositive MOF sheets, which exhibits high mechanical flexibility, and superior Cs+ sorption, is presented.

scholarly journals Precise and Ultrafast Molecular Sieving Through Graphene Oxide Membranes

Science ◽  
2014 ◽  
Vol 343 (6172) ◽  
pp. 752-754 ◽  
Author(s):  
R. K. Joshi ◽  
P. Carbone ◽  
F. C. Wang ◽  
V. G. Kravets ◽  
Y. Su ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxide Membranes ◽  
Molecular Sieving ◽  
Graphene Oxide Membranes

scholarly journals Graphene Oxide Membranes: Trilayer Interlinked Graphene Oxide Membrane for Wearable Hemodialyzer (Adv. Mater. Interfaces 3/2021)

2021 ◽  
Vol 8 (3) ◽  
pp. 2170011
Author(s):  
Richard P. Rode ◽  
Henry H. Chung ◽  
Hayley N. Miller ◽  
Thomas R. Gaborski ◽  
Saeed Moghaddam
Keyword(s):  
Graphene Oxide ◽  
Oxide Membrane ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

scholarly journals Nanoporous graphene oxide membrane and its application in molecular sieving

2015 ◽  
Vol 16 (3) ◽  
pp. 183-191 ◽  
Author(s):  
S. Mahmood Fatemi ◽  
Masoud Arabieh ◽  
Hamid Sepehrian
Keyword(s):  
Graphene Oxide ◽  
Nanoporous Graphene ◽  
Oxide Membrane ◽  
Molecular Sieving

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.

A surface-modified EDTA-reduced graphene oxide membrane for nanofiltration and anti-biofouling prepared by plasma post-treatment

2019 ◽  
Vol 6 (7) ◽  
pp. 2292-2298 ◽  
Author(s):  
Byeongho Lee ◽  
Dong Woo Suh ◽  
Sung Pil Hong ◽  
Jeyong Yoon
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Post Treatment ◽  
Reduced Graphene ◽  
Surface Modified ◽  
Oxide Membrane ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Plasma post-treatment is a facile method to tune performances of functionalized reduced graphene oxide membranes for nanofiltration.

Sign in / Sign up

Export Citation Format

Share Document