Turbostratic nanoporous carbon sheet membrane for ultrafast and selective nanofiltration in viscous green solvents

2020 ◽  
Vol 8 (17) ◽  
pp. 8292-8299 ◽  
Author(s):  
Jaedong Jang ◽  
Yoon Tae Nam ◽  
Daeok Kim ◽  
Yong-Jae Kim ◽  
Dae Woo Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Thermal Treatment ◽  
Organic Solvent ◽  
Upper Bound ◽  
Nanoporous Carbon ◽  
Green Solvents ◽  
Carbon Sheet ◽  
Organic Solvent Nanofiltration ◽  
Sheet Membrane

Turbostratic nanoporous carbon sheet membrane fabricated via rapid thermal treatment of graphene oxide shows outstanding organic solvent nanofiltration performance, which far exceeds the upper bound of existing membranes.

Fungal Cell Wall‐Graphene Oxide Microcomposite Membrane for Organic Solvent Nanofiltration

2021 ◽  
pp. 2100110
Author(s):  
Liyuan Zhang ◽  
Mengchen Zhang ◽  
Gongping Liu ◽  
Wanqin Jin ◽  
Xiaoyan Li
Keyword(s):  
Cell Wall ◽  
Graphene Oxide ◽  
Organic Solvent ◽  
Fungal Cell Wall ◽  
Fungal Cell ◽  
Organic Solvent Nanofiltration

scholarly journals Realizing small-flake graphene oxide membranes for ultrafast size-dependent organic solvent nanofiltration

2020 ◽  
Vol 6 (17) ◽  
pp. eaaz9184 ◽  
Author(s):  
Lina Nie ◽  
Kunli Goh ◽  
Yu Wang ◽  
Jaewoo Lee ◽  
Yinjuan Huang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Organic Solvent ◽  
High Performance ◽  
Organic Dyes ◽  
Molecular Transport ◽  
Operating Conditions ◽  
Transport Pathways ◽  
Size Dependent ◽  
Organic Solvent Nanofiltration ◽  
Small Flake

Membranes for organic solvent nanofiltration (OSN) or solvent-resistant nanofiltration (SRNF) offer unprecedented opportunities for highly efficient and cost-competitive solvent recovery in the pharmaceutical industry. Here, we describe small-flake graphene oxide (SFGO) membranes for high-performance OSN applications. Our strategy exploits lateral dimension control to engineer shorter and less tortuous transport pathways for solvent molecules. By using La3+ as a cross-linker and spacer for intercalation, the SFGO membrane selective layer was stabilized, and size-dependent ultrafast selective molecular transport was achieved. The methanol permeance was up to 2.9-fold higher than its large-flake GO (LFGO) counterpart, with high selectivity toward three organic dyes. More importantly, the SFGO-La3+ membrane demonstrated robust stability for at least 24 hours under hydrodynamic stresses that are representative of realistic OSN operating conditions. These desirable attributes stem from the La3+ cross-linking, which forms uniquely strong coordination bonds with oxygen-containing functional groups of SFGO. Other cations were found to be ineffective.

scholarly journals 2D-dual-spacing channel membranes for high performance organic solvent nanofiltration

2019 ◽  
Vol 7 (19) ◽  
pp. 11673-11682 ◽  
Author(s):  
Shaofei Wang ◽  
Dinesh Mahalingam ◽  
Burhannudin Sutisna ◽  
Suzana P. Nunes
Keyword(s):  
Graphene Oxide ◽  
Organic Solvent ◽  
High Performance ◽  
Organic Solvent Nanofiltration ◽  
Oxide Membranes ◽  
High Rejection ◽  
Graphene Oxide Membranes

Dual-spacing-channel graphene oxide membranes with multiple hydrophilic domains give high permeance and high rejection in organic solvent nanofiltration.

Graphene oxide (GO)-interlayered thin-film nanocomposite (TFN) membranes with high solvent resistance for organic solvent nanofiltration (OSN)

2019 ◽  
Vol 7 (21) ◽  
pp. 13315-13330 ◽  
Author(s):  
Yanyang Li ◽  
Can Li ◽  
Shuxuan Li ◽  
Baowei Su ◽  
Lihui Han ◽  
...  
Keyword(s):  
Thin Film ◽  
Graphene Oxide ◽  
Organic Solvent ◽  
Skin Layer ◽  
Cross Linking ◽  
Solvent Resistance ◽  
Organic Solvent Nanofiltration ◽  
Thin Film Nanocomposite

GO-interlayered OSN membrane with ultrasmooth, ultrathin, high cross-linking degree skin layer with excellent solvent resistance.

scholarly journals Stable Graphene Oxide Cross-Linked Membranes for Organic Solvent Nanofiltration

2019 ◽  
Vol 58 (51) ◽  
pp. 23106-23113 ◽  
Author(s):  
Dinesh K. Mahalingam ◽  
Shaofei Wang ◽  
Suzana P. Nunes
Keyword(s):  
Graphene Oxide ◽  
Organic Solvent ◽  
Organic Solvent Nanofiltration

Reduced Graphene Oxide Membranes for Ultrafast Organic Solvent Nanofiltration

2016 ◽  
Vol 28 (39) ◽  
pp. 8669-8674 ◽  
Author(s):  
Liang Huang ◽  
Ji Chen ◽  
Tiantian Gao ◽  
Miao Zhang ◽  
Yingru Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Organic Solvent ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Organic Solvent Nanofiltration ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Enhanced stability and separation efficiency of graphene oxide membranes in organic solvent nanofiltration

2018 ◽  
Vol 6 (40) ◽  
pp. 19563-19569 ◽  
Author(s):  
Tiantian Gao ◽  
Haibo Wu ◽  
Lei Tao ◽  
Liangti Qu ◽  
Chun Li
Keyword(s):  
Graphene Oxide ◽  
Organic Solvent ◽  
Separation Efficiency ◽  
Term Stability ◽  
Long Term Stability ◽  
Organic Solvent Nanofiltration ◽  
Oxide Membranes ◽  
Enhanced Stability ◽  
Graphene Oxide Membranes

GO–BA membranes exhibited excellent nanofiltration performances and long-term stability for OSN with the assistance of BA polymers.

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