Understanding Gas Transport Behavior through Few-Layer Graphene Oxide Membranes Controlled by Tortuosity and Interlayer Spacing

2019 ◽  
Vol 10 (24) ◽  
pp. 7725-7731 ◽  
Author(s):  
Ji Soo Roh ◽  
Tae Hwan Choi ◽  
Tae Hoon Lee ◽  
Hee Wook Yoon ◽  
Juyoung Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Gas Transport ◽  
Interlayer Spacing ◽  
Layer Graphene ◽  
Transport Behavior ◽  
Few Layer Graphene ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Near-complete blocking of multivalent anions in graphene oxide membranes with tunable interlayer spacing from 3.7 to 8.0 angstrom

2019 ◽  
Vol 592 ◽  
pp. 117394 ◽  
Author(s):  
Jongwoon Kim ◽  
Seung Eun Lee ◽  
Seunghwan Seo ◽  
Ju Yeon Woo ◽  
Chang-Soo Han
Keyword(s):  
Graphene Oxide ◽  
Interlayer Spacing ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Chemical vapor crosslinking of graphene oxide membranes for controlling nanochannels

2020 ◽  
Vol 7 (10) ◽  
pp. 2924-2929
Author(s):  
Jingyi Su ◽  
Miaomiao Jia ◽  
Wufeng Wu ◽  
Zhanjun Li ◽  
Wanbin Li
Keyword(s):  
Graphene Oxide ◽  
Water Treatment ◽  
Chemical Vapor ◽  
Interlayer Spacing ◽  
Solvent Free ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

The solvent-free chemical vapor crosslinking can directly fix the interlayer spacing of GO membranes for better water treatment.

Controlling interlayer spacing and organic solvent permeation in laminar graphene oxide membranes modified with crosslinker

2021 ◽  
pp. 119279
Author(s):  
Keizo Nakagawa ◽  
Shintaro Araya ◽  
Kai Ushio ◽  
Misato Kunimatsu ◽  
Tomohisa Yoshioka ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Organic Solvent ◽  
Interlayer Spacing ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes ◽  
Solvent Permeation

Tuning interlayer spacing of graphene oxide membranes with enhanced desalination performance

Desalination ◽  
2019 ◽  
Vol 460 ◽  
pp. 56-63 ◽  
Author(s):  
Yunlong Qian ◽  
Xiaoling Zhang ◽  
Chuanyao Liu ◽  
Chen Zhou ◽  
Aisheng Huang
Keyword(s):  
Graphene Oxide ◽  
Interlayer Spacing ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

scholarly journals Correlating Interlayer Spacing and Separation Capability of Graphene Oxide Membranes in Organic Solvents

ACS Nano ◽  
2020 ◽  
Vol 14 (5) ◽  
pp. 6013-6023 ◽  
Author(s):  
Sunxiang Zheng ◽  
Qingsong Tu ◽  
Monong Wang ◽  
Jeffrey J. Urban ◽  
Baoxia Mi
Keyword(s):  
Graphene Oxide ◽  
Organic Solvents ◽  
Interlayer Spacing ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Swelling of Graphene Oxide Membranes in Aqueous Solution: Characterization of Interlayer Spacing and Insight into Water Transport Mechanisms

ACS Nano ◽  
2017 ◽  
Vol 11 (6) ◽  
pp. 6440-6450 ◽  
Author(s):  
Sunxiang Zheng ◽  
Qingsong Tu ◽  
Jeffrey J. Urban ◽  
Shaofan Li ◽  
Baoxia Mi
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Water Transport ◽  
Interlayer Spacing ◽  
Transport Mechanisms ◽  
Oxide Membranes ◽  
Insight Into ◽  
Graphene Oxide Membranes

Selective Gas Transport Through Few-Layered Graphene and Graphene Oxide Membranes

Science ◽  
2013 ◽  
Vol 342 (6154) ◽  
pp. 91-95 ◽  
Author(s):  
Hyo Won Kim ◽  
Hee Wook Yoon ◽  
Seon-Mi Yoon ◽  
Byung Min Yoo ◽  
Byung Kook Ahn ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Graphene Oxide ◽  
Gas Flow ◽  
Gas Transport ◽  
Gas Diffusion ◽  
Wide Range ◽  
Oxide Membranes ◽  
Stacking Structure ◽  
High Carbon Dioxide ◽  
Graphene Oxide Membranes

Graphene is a distinct two-dimensional material that offers a wide range of opportunities for membrane applications because of ultimate thinness, flexibility, chemical stability, and mechanical strength. We demonstrate that few- and several-layered graphene and graphene oxide (GO) sheets can be engineered to exhibit the desired gas separation characteristics. Selective gas diffusion can be achieved by controlling gas flow channels and pores via different stacking methods. For layered (3- to 10-nanometer) GO membranes, tunable gas transport behavior was strongly dependent on the degree of interlocking within the GO stacking structure. High carbon dioxide/nitrogen selectivity was achieved by well-interlocked GO membranes in high relative humidity, which is most suitable for postcombustion carbon dioxide capture processes, including a humidified feed stream.

Regulating the Interlayer Spacing of Graphene Oxide Membranes and Enhancing their Stability by Use of PACl

2019 ◽  
Vol 53 (20) ◽  
pp. 11949-11959 ◽  
Author(s):  
Ting Liu ◽  
Long Tian ◽  
Nigel Graham ◽  
Bing Yang ◽  
Wenzheng Yu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Interlayer Spacing ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

scholarly journals Size-Dependent Ion Adsorption in Graphene Oxide Membranes

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1676
Author(s):  
Xiaoheng Jin ◽  
Xinyue Wen ◽  
Sean Lim ◽  
Rakesh Joshi
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Organic Pollutants ◽  
Heavy Metal Ions ◽  
Interlayer Spacing ◽  
Ion Adsorption ◽  
Size Dependent ◽  
Aqueous Environments ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Graphene oxide (GO)-based materials have demonstrated promising potential for adsorption and purification applications. Due to its amphiphilic nature, GO offers the possibility of removing various kinds of contaminants, including heavy metal ions and organic pollutants from aqueous environments. Here, we present size-selective ion adsorption in GO-based laminates by directly measuring the weight uptake of slats. Adsorption studies were conducted in graphene oxide purchased from Nisina Materials Japan prepared using a controlled method. We tuned the interlayer spacing of GO membranes via cationic control solutions using intercalation of very small salts ions (i.e., K+, Na+, Cl−) very precisely to facilitate the adsorption of larger ions such as [Fe(CN)6]4− and [Fe(CN)6]3−. This study demonstrates that if the opening of nanocapillaries within the laminates is bigger than the hydrated diameter of ions, the adsorption occurs within the membranes while for smaller opening, with no ion entrance the sorption occurs on the surface of the membranes.

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