Recent advances in nanoporous graphene membrane for gas separation and water purification

Sun, Chengzhen; Wen, Boyao; Bai, Bofeng

doi:10.1007/s11434-015-0914-9

Cited by 106 publications

(46 citation statements)

References 121 publications

(194 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Theoretical analyses showed that higher ion exclusion rather than a change in the permeability of the membrane was obtained when specific terminating groups were present [40,53]. MD simulations also showed selectivity of NPG against salt rejection, since it is permeable to specific solvated ions and impermeable to others [54,55].…”

Section: Geofluidsmentioning

confidence: 95%

Graphene-Based Membrane Technology: Reaching Out to the Oil and Gas Industry

Castro¹,

Cocuzza

Lamberti

et al. 2018

Geofluids

View full text Add to dashboard Cite

This paper presents a critical review and the state of the art of graphene porous membranes, a brand-new technology and backdrop to discuss its potential application for efficient water desalination in low salinity water injection (LSWI). LSWI technology consists in injecting designed, adequately modified, filtered water to maximize oil production. To this end, desalination technologies already available can be further optimized, for example, via graphene membranes, to achieve greater efficiency in water-oil displacement. Theoretical and experimental applications of graphene porous membranes in water desalination have shown promising results over the last 5-6 years. Needless to say, improvements are still needed before graphene porous membranes become readily available. However, the present work simply sets out to demonstrate, at least in principle, the practical potential graphene membranes would have in hydrocarbon recovery processes.

show abstract

Section: Geofluidsmentioning

confidence: 95%

Graphene-Based Membrane Technology: Reaching Out to the Oil and Gas Industry

Castro¹,

Cocuzza

Lamberti

et al. 2018

Geofluids

View full text Add to dashboard Cite

show abstract

“…Whereas, nanoporous graphene/graphene oxide with its high surface area can be used for advanced membrane separation due to its molecular sieving property [6,16]. Nanoporous membrane can be fabricated by arranging graphene (G)/graphene oxide (GO) with specific architecture and size.…”

Section: Brief Overview Of Cnms Based Membranesmentioning

confidence: 99%

“…Whereas, higher loading of CNT limits the increase of gas permeability due to the tortuosity of the agglomerated CNT [23]. Nano-porous graphene membrane can be used for high efficiency membrane separation due to its ultrafast molecular permeation rate which could be promising for the applications in energy, environment and water solution, including carbon sequestration, fuel cells, gas separation, desalination [4][5][6].…”

Section: Applications Of Cnm Based Membranesmentioning

confidence: 99%

“…Depending on the number of shell of graphene, carbon nanotube (CNT) can be classified as single walled carbon nanotube (SWNT) with single shell of graphene, similarly, double walled carbon nanotube (DWNT) and multi walled carbon nanotube (MWNT). Whereas, graphene is a one-atom thick sheet of graphite which contain sp2-hybridized carbon atoms nicely arranged in the hexagonal honeycomb lattices, and graphene oxide (GO) nano sheets are oxygen functional groups containing graphene which could be obtained by treating graphite with strong oxidizer [4][5][6]. One of the prime applications of the CNMs is reinforcing materials in the matrix (e.g.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Carbon Nanomaterials Based Membranes

Mondal¹

2016

J Membra Sci Technol

View full text Add to dashboard Cite

In the past few years, there is impressive breakthrough for the research on nano structured materials to solve global significant challenges like, water, energy, environment, medicine etc. Among various nanomaterials, carbon nanomaterials (CNMs) are gaining significant interest to the material scientists to develop advanced membranes for novel separation processes. It is believed that CNM based membranes have the potential to overcome the inherent limitations of conventional membranes separations.

show abstract

“…In particular, carbon nanomembranes (CNMs), formed via self-assembly of aromatic thiol-precursor molecules, have been shown to display pore densities in the range required for applications such as desalination by reverse osmosis and as separation membranes. [13][14][15] Beside the pore density, which determines through-put, a key factor in the efficiency of filtration is the pore size distribution in a 2D membrane, with smaller pores yielding higher selectivity in trans-membrane transport. Previous studies have revealed that the pore size in CNMs is determined by the size and structure of the precursor molecules.…”

Section: Introductionmentioning

confidence: 99%

Selective ion sieving through arrays of sub-nanometer nanopores in chemically tunable 2D carbon membranes

et al. 2019

View full text Add to dashboard Cite

Two-dimensional (2D) membranes featuring arrays of sub-nanometer pores have applications in purification, solvent separation and water desalination. Compared to channels in bulk membranes, 2D nanopores have lower resistance to transmembrane transport, leading to faster passage of ions. However, the formation of nanopores in 2D membranes requires expensive post-treatment using plasma or ion bombardment. Here, we study bottom-up synthesized porous carbon nanomembranes (CNMs) of biphenyl thiol (BPT) precursors. Sub-nanometer pores arise intrinsically during the BPT-CNM synthesis with a density of 2 ± 1 pore per 100 nm 2 . We employ BPT-CNM based pore arrays as efficient ion sieving channels, and demonstrate selectivity of the membrane towards ion transport when exposed to a range of concentration gradients of KCl, CsCl and MgCl 2 . The selectivity of the membrane towards K + over Cl − ions is found be 16.6 mV at a 10 : 1 concentration ratio, which amounts to ∼30% efficiency relative to the Nernst potential for complete ion rejection. The pore arrays in the BPT-CNM show similar transport and selectivity properties to graphene and carbon nanotubes, whilst the fabrication method via self-assembly offers a facile means to control the chemical and physical properties of the membrane, such as surface charge, chemical nature and pore density. CNMs synthesized from self-assembled monolayers open the way towards the rational design of 2D membranes for selective ion sieving.

show abstract

Recent advances in nanoporous graphene membrane for gas separation and water purification

Cited by 106 publications

References 121 publications

Graphene-Based Membrane Technology: Reaching Out to the Oil and Gas Industry

Graphene-Based Membrane Technology: Reaching Out to the Oil and Gas Industry

Carbon Nanomaterials Based Membranes

Selective ion sieving through arrays of sub-nanometer nanopores in chemically tunable 2D carbon membranes

Contact Info

Product

Resources

About