A Novel Strategy to Fabricate Cation-Cross-linked Graphene Oxide Membrane with High Aqueous Stability and High Separation Performance

2020 ◽  
Vol 12 (50) ◽  
pp. 56269-56280
Author(s):  
Xing-Bin Lv ◽  
Rui Xie ◽  
Jun-Yi Ji ◽  
Zhuang Liu ◽  
Xiao-Yu Wen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Separation Performance ◽  
Novel Strategy ◽  
Oxide Membrane ◽  
High Separation

Separation Performance of Graphene Oxide Membrane in Aqueous Solution

2016 ◽  
Vol 55 (17) ◽  
pp. 4803-4810 ◽  
Author(s):  
Di An ◽  
Ling Yang ◽  
Ting-Jie Wang ◽  
Boyang Liu
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Separation Performance ◽  
Oxide Membrane

Efficient dehydration of the organic solvents through graphene oxide (GO)/ceramic composite membranes

RSC Advances ◽  
2014 ◽  
Vol 4 (94) ◽  
pp. 52012-52015 ◽  
Author(s):  
Guihua Li ◽  
Lei Shi ◽  
Gaofeng Zeng ◽  
Yanfeng Zhang ◽  
Yuhan Sun
Keyword(s):  
Graphene Oxide ◽  
Mechanical Strength ◽  
Organic Solvents ◽  
Ceramic Composite ◽  
Composite Membranes ◽  
Separation Performance ◽  
Deposition Method ◽  
Solvent Water ◽  
High Separation

Al2O3 tube supported GO composite membranes with submicron thickness and improved mechanical strength were fabricated via a filter-pressing deposition method. High separation performance was achieved in the pervaporation of solvent–water mixtures.

scholarly journals Impact of monovalent cations on the separation performance of graphene oxide membrane for different organic matters

2020 ◽  
Vol 82 (8) ◽  
pp. 1560-1569
Author(s):  
Huabiao Qi ◽  
Xin Zhao ◽  
Han Li ◽  
Yuang Che ◽  
Can Wang
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Inorganic Ions ◽  
Separation Performance ◽  
High Flux ◽  
Monovalent Cations ◽  
Organic Substances ◽  
Organic Matters ◽  
Oxide Membrane ◽  
The Impact

Abstract Graphene oxide (GO) membrane has become a promising membrane due to its advantages of high flux, good anti-pollution performance, and controllable cost. Since wastewater contains inorganic ions and organic substances, the effect of inorganic ions on the removal of organic matters has attracted attention. This study investigated the impact of monovalent cations (Na+ and K+) on the removal of different organic matters by GO membranes. The results showed that the removal by GO membranes of both macromolecular organic compounds (humic acid, sodium alginate, and bull serum albumin) and small molecular organic substances (new coccine, methyl orange, and methylene blue) were high (>75%). The coexisting Na+ caused the increase in flux and the decrease in removal of small molecular organic matters, while the impact on the removal of macromolecular organic matters was weak. The impact of the coexisting K+ was weaker than Na+. With the crosslinking of ethylenediamine, the structure of GO membrane was more stable. The impacts of Na+ on the flux and separation performance of crosslinked membranes were less than that of non-crosslinked membranes. This suggests that crosslinked GO membrane has more potential for practical wastewater treatment.

Oscillation in the electrical conductivity of a thick graphene oxide membrane

2021 ◽  
Vol 129 (23) ◽  
pp. 235105
Author(s):  
L. Jamilpanah ◽  
M. Alihosseini ◽  
S. Ghasemi ◽  
N. Hassani ◽  
F. Peymanirad ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Graphene Oxide ◽  
Oxide Membrane

scholarly journals Optimization of Mordenite Membranes Using Sucrose Precursor for Pervaporation of Water-Ethanol Mixtures

Membranes ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 160
Author(s):  
Abdulaziz A. Alomair ◽  
Yousef Alqaheem
Keyword(s):  
Pyrolysis Temperature ◽  
Operating Temperature ◽  
Selective Adsorption ◽  
Sucrose Concentration ◽  
Low Cost ◽  
Water Flux ◽  
Separation Performance ◽  
Carbon Membranes ◽  
Adsorption Of Water ◽  
High Separation

Post-treated mordenite membranes were prepared using sucrose (C12H22O11) as a carbon precursor to block any pinholes and defects in the zeolite layer. The pervaporation (PV) process was used to separate ethanol from the water. The effects of the sucrose concentration and the pyrolysis temperature (650–850 °C) were investigated, and the resulting high separation performance compared to those post/pre-treated membranes was reported in the literature. In this study, mordenite carbon membranes yielded a water/ethanol separation factor of 990.37 at a water flux of 9.10 g/m2h. The influence of the operating temperature on the performance of the membrane also was considered. It was concluded that the selective adsorption of water through zeolite pores was achieved. The entire preparation procedure was achieved using a rapid, low-cost preparation process.

Polyvinylamine/graphene oxide/PANI@CNTs mixed matrix composite membranes with enhanced CO2/N2 separation performance

2019 ◽  
Vol 589 ◽  
pp. 117246 ◽  
Author(s):  
Yonghong Wang ◽  
Long Li ◽  
Xinru Zhang ◽  
Jinping Li ◽  
Chengcen Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Matrix Composite ◽  
Composite Membranes ◽  
Separation Performance ◽  
Mixed Matrix
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