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.

Thin, High-Flux, Self-Standing, Graphene Oxide Membranes for Efficient Hydrogen Separation from Gas Mixtures

2017 ◽  
Vol 23 (47) ◽  
pp. 11416-11422 ◽  
Author(s):  
Daniel Bouša ◽  
Karel Friess ◽  
Kryštof Pilnáček ◽  
Ondřej Vopička ◽  
Marek Lanč ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Gas Mixtures ◽  
Hydrogen Separation ◽  
High Flux ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

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.

Enhanced photo-driven ion pump through silver nanoparticles decorated graphene oxide membranes

Nano Research ◽  
2021 ◽  
Author(s):  
Yaping Feng ◽  
Haoyu Dai ◽  
Yi Zhang ◽  
Jianjun Chen ◽  
Fengxiang Chen ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Ion Pump ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Electrically Controlled Thermal Radiation from Reduced Graphene Oxide Membranes

2021 ◽  
Author(s):  
Zhaolong Chen ◽  
Kou Yang ◽  
Tongfeng Xian ◽  
Coskun Kocabas ◽  
Sergei V. Morozov ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Thermal Radiation ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Layered graphene oxide membranes functioned by amino acids for efficient separation of metal ions

2021 ◽  
Vol 546 ◽  
pp. 149145
Author(s):  
Bo Zheng ◽  
Xianxian Chu ◽  
Han Li ◽  
Xiuli Wu ◽  
Xin Zhao ◽  
...  
Keyword(s):  
Amino Acids ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Separation Of Metal Ions ◽  
Efficient Separation ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

pH-Mediated fine-tuning of optical properties of graphene oxide membranes

Carbon ◽  
2012 ◽  
Vol 50 (9) ◽  
pp. 3233-3239 ◽  
Author(s):  
Wei Lv ◽  
Cong-Hui You ◽  
Sida Wu ◽  
Baohua Li ◽  
Zhen-Ping Zhu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Graphene Oxide ◽  
Fine Tuning ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

scholarly journals Aptamer-Conjugated Graphene Oxide Membranes for Highly Efficient Capture and Accurate Identification of Multiple Types of Circulating Tumor Cells

2015 ◽  
Vol 26 (2) ◽  
pp. 235-242 ◽  
Author(s):  
Bhanu Priya Viraka Nellore ◽  
Rajashekhar Kanchanapally ◽  
Avijit Pramanik ◽  
Sudarson Sekhar Sinha ◽  
Suhash Reddy Chavva ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Tumor Cells ◽  
Circulating Tumor Cells ◽  
Accurate Identification ◽  
Highly Efficient ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Thermal reduction to control the spacing in graphene oxide membranes: effect on ion diffusion and electrical conduction

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 70012-70017 ◽  
Author(s):  
A. Alhadhrami ◽  
S. Salgado ◽  
V. Maheshwari
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrical Conduction ◽  
Thermal Reduction ◽  
Electrochemical Characteristics ◽  
Ion Diffusion ◽  
Layer Spacing ◽  
Reduced Graphene ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Inter-layer spacing in reduced graphene-oxide membranes which modulates their ion-diffusion electrical and electrochemical characteristics is controlled by temperature of thermal reduction.

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