Suppressed Polysulfide Crossover in Li–S Batteries through a High-Flux Graphene Oxide Membrane Supported on a Sulfur Cathode

ACS Nano ◽  
2016 ◽  
Vol 10 (8) ◽  
pp. 7768-7779 ◽  
Author(s):  
Mahdokht Shaibani ◽  
Abozar Akbari ◽  
Phillip Sheath ◽  
Christopher D. Easton ◽  
Parama Chakraborty Banerjee ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Flux ◽  
Sulfur Cathode ◽  
Oxide Membrane

scholarly journals Laminated graphene oxide membrane for recovery of mercury-containing wastewater by pervaporation

2021 ◽  
Vol 11 (7) ◽  
Author(s):  
Ziheng Wang ◽  
Yingzhe Qin ◽  
Xiangping Xu ◽  
Jiawei Sun ◽  
Jiancheng Shen ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Organic Carbon ◽  
High Flux ◽  
Toxic Heavy Metal ◽  
Metal Contaminant ◽  
Oxide Membrane ◽  
High Rejection ◽  
Harmful Effects ◽  
Feed Temperature

AbstractMercury (Hg) is a toxic heavy metal contaminant and has very harmful effects for human health. In this work, Hg-containing wastewater with Hg concentration of 6.36 ppb and 9.4 ppb were recovered with polyethylenimine (PEI) cross-linked graphene oxide (GO) layered membrane (c-GO-PEI) by pervaporation. The influence of ionic type, the concentration of Hg and the feed temperature were investigated. The c-GO-PEI exhibited not only high rejection for salts (> 99.97%), Hg (77.5–100%) and non-purgeable organic carbon (NPOC) (67.3–90.8%) but also high flux (30.30 kg·m−2·h−1) to treat with the wastewater. In addition, the flux could be largely recovered after simple washing, indicating the excellent antifouling property of the membrane.

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

Fabrication of Graphene Oxide Membrane with Multiple “Plug-ins” for Efficient Dye Nanofiltration

2021 ◽  
pp. 119504
Author(s):  
Jia Pang ◽  
Xiaolei Cui ◽  
Yang Feng ◽  
Zhenji Guo ◽  
Guodong Kong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxide Membrane

Emerging investigators series: silica-crosslinked graphene oxide membrane and its unique capability in removing neutral organic molecules from water

2016 ◽  
Vol 2 (4) ◽  
pp. 717-725 ◽  
Author(s):  
Sunxiang Zheng ◽  
Baoxia Mi
Keyword(s):  
Graphene Oxide ◽  
Organic Molecules ◽  
Ionic Species ◽  
Oxide Membrane ◽  
Unique Capability

A new graphene oxide (GO) membrane was synthesized by crosslinking GO nanosheets via silica. This membrane was found to remove neutral organic molecules much more efficiently than negatively charged ionic species.

Dual-site supported graphene oxide membrane with enhanced permeability and selectivity

2021 ◽  
pp. 120223
Author(s):  
Long Tian ◽  
Nigel Graham ◽  
Ting Liu ◽  
Kening Sun ◽  
Wenzheng Yu
Keyword(s):  
Graphene Oxide ◽  
Oxide Membrane ◽  
Dual Site
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