Graphene Oxide- Inorganic Composite Membrane: A Review

Zunita, Megawati; Makertiharta, I G B N; Irawanti, R; Prasetya, Nicholaus; Wenten, I Gede

doi:10.1088/1757-899x/395/1/012005

Cited by 21 publications

(9 citation statements)

References 115 publications

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“…Usually, a ceramic hollow fiber membrane is used as GO membrane material due to its properties like being easily stacked on the surface with pressure driving. Then the as-prepared GO membrane was dried in a vacuum chamber at 40 °C and is ready to be used for Hg separation [ 28 , 127 , 146 ].…”

Section: Graphene Oxide-based Nanofiltration Membrane Preparationmentioning

confidence: 99%

Graphene Oxide-Based Nanofiltration for Hg Removal from Wastewater: A Mini Review

Zunita

2021

Membranes

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Mercury (Hg) is one of heavy metals with the highest toxicity and negative impact on the biological functions of living organisms. Therefore, many studies are devoted to solving the problem of Hg separation from wastewater. Membrane-based separation techniques have become more preferable in wastewater treatment area due to their ease of operation, mild conditions and also more resistant to toxic pollutants. This technique is also flexible and has a wide range of possibilities to be integrated with other techniques. Graphene oxide (GO) and derivatives are materials which have a nanostructure can be used as a thin and flexible membrane sheet with high chemical stability and high mechanical strength. In addition, GO-based membrane was used as a barrier for Hg vapor due to its nano-channels and nanopores. The nano-channels of GO membranes were also used to provide ion mobility and molecule filtration properties. Nowadays, this technology especially nanofiltration for Hg removal is massively explored. The aim of the review paper is to investigate Hg removal using functionalized graphene oxide nanofiltration. The main focus is the effectiveness of the Hg separation process.

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Section: Graphene Oxide-based Nanofiltration Membrane Preparationmentioning

confidence: 99%

Graphene Oxide-Based Nanofiltration for Hg Removal from Wastewater: A Mini Review

Zunita

2021

Membranes

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“…Among these treatment methods, membrane filtration stands out because it provides comparatively higher efficiencies, low cost, and selectivity [ 106 , 107 ]. Membrane-based desalination techniques are currently considered more environmentally friendly and energy-efficient than thermal desalination methods such as multistage flash and multiple-effect distillation [ 108 ]. Although the traditional membrane-based filtration technique is the most efficient technique to date, it suffers from low treatment capacity and high capital costs.…”

Section: Dnms-based Membrane For Water/wastewater Treatmentmentioning

confidence: 99%

Advances in the Synthesis and Application of Anti-Fouling Membranes Using Two-Dimensional Nanomaterials

Shahzad

Azam

et al. 2021

Membranes

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This article provides a comprehensive review of the recent progress in the application of advanced two-dimensional nanomaterials (2DNMs) in membranes fabrication and application for water purification. The membranes fouling, its types, and anti-fouling mechanisms of different 2DNMs containing membrane systems are also discussed. The developments in membrane synthesis and modification using 2DNMs, especially graphene and graphene family materials, carbon nanotubes (CNTs), MXenes, and others are critically reviewed. Further, the application potential of next-generation 2DNMs-based membranes in water/wastewater treatment systems is surveyed. Finally, the current problems and future opportunities of applying 2DNMs for anti-fouling membranes are also debated.

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“…Contrary to the NPG membranes, GO-based membranes are mostly synthesized through bottom-up methods. The most common bottom method of GO membrane fabrication is vacuum filtration [20,[29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45] During filtration, GO sheets are acted on by a gravitational or pressure force to stack one upon the other above a substrate which supports them. This allows the formation of nanocapillaries between the sheets and alongside them, which is what allows the transport of mass, such as ions and water or gas molecules.…”

Section: Graphene Oxide (Go) Membranesmentioning

confidence: 99%

“…These interactions are characterized by pore functionalization and are not size dependent. To functionalize a pore, its edges can be passivated with ions, which induces specific electrostatic interactions and dictates the membrane performance [44,120]. Donnan-Type interactions depend mainly on the charge and the valence of charged pores.…”

Section: Donnan Type and Other Related Mechanismsmentioning

confidence: 99%

Graphene Membranes: Transport Properties and Energy Applications

Chabi

2021

MAMS

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Graphene materials are increasingly being used in all types of membrane-based technologies ranging from water purification to energy conversion systems such as fuel cell and solar fuel technologies. Graphene's physical and chemical richness enables a variety of mass transport mechanisms that are impossible in traditional membranes. These mechanisms are dictated by the graphene microstructure and its versatility which leads transport to occur via pores, sub-nanometer pores, or via nanochannels. Graphene membranes can be designed to create nanochannels that allow highly selective ion or gas transport by biomimicking naturally occurring biological systems. However, these potentials cannot be fully explored without understanding the interplay between graphene microstructures and the transport mechanism. Toward taking advantage of graphene membrane technology, a fundamental understanding of the mass transport mechanisms is necessary. In this Review, we provide an in-depth discussion about three different types of mass transport through graphene nanopores and graphene nanochannels. By focusing on the relation between nanopores/channels chemistry e.g. effect of functional groups and pore polarity and transport mechanism, we identify key lessons, challenges, and potential solutions to empowering membrane-based energy technologies.

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Graphene Oxide- Inorganic Composite Membrane: A Review

Cited by 21 publications

References 115 publications

Graphene Oxide-Based Nanofiltration for Hg Removal from Wastewater: A Mini Review

Graphene Oxide-Based Nanofiltration for Hg Removal from Wastewater: A Mini Review

Advances in the Synthesis and Application of Anti-Fouling Membranes Using Two-Dimensional Nanomaterials

Graphene Membranes: Transport Properties and Energy Applications

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