Functionalized graphene oxide-based lamellar membranes for organic solvent nanofiltration applications

Jatoi, Ashique Hussain; Kim, Kyung Hwan; Khan, Muhammad Ali; Memon, Fida Hussain; Iqbal, Muzaffar; Janwery, Dahar; Phulpoto, Shah Nawaz; Samantasinghar, Anupama; Choi, Kyung Hyun; Thebo, Khalid Hussain

doi:10.1039/d3ra00223c

Cited by 38 publications

(10 citation statements)

References 47 publications

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“…However, developing robust, high-performance materials and dealing with humidity in hostile environments are exceedingly difficult for novel membrane technology applications. In this regard, a large range of materials have been studied, including polymers, zeolite, metal-organci frameworks (MOFs), covalent organic frameworks (COFs), graphene, and metal carbides and nitrides (Mxene) [29][30][31][32][33][34][35][36][37][38][39][40][41], but their market potential is constrained by their low selectivity and unstable nature. So, the scientific community continues to place a high focus on choosing materials with advanced selectivity, stability, and flux.…”

Section: Gas Separationmentioning

confidence: 99%

Molybdenum Sulfide Nanomaterial: A Potential Candidate for Separation Membranes

Jatoi,

Soomro,

Maqbool

et al. 2024

ChemBioEng Reviews

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Molybdenum sulfide (MoS2)‐based nanocomposites have attracted significant attention for various separation processes due to their ultrathin thickness, high mechanical and chemical strength, and good functionality. Herein, the recent progresses of various fabrication, synthesis, and modification methods for separation membrane‐based on MoS2 nanocomposites are reviewed. Emphasis is given on applications of MoS2‐based membranes in the purification of wastewater, separation of gas mixtures, energy storage separator, and proton‐exchange fuel cells (PEFCs). Advantages and drawbacks of this material for separation applications are discussed. Finally, a future roadmap is suggested for this promising nanomaterial in various separation processes.

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Section: Gas Separationmentioning

confidence: 99%

Molybdenum Sulfide Nanomaterial: A Potential Candidate for Separation Membranes

Jatoi,

Soomro,

Maqbool

et al. 2024

ChemBioEng Reviews

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“…Molecular separations are processes that demand a lot of energy and can be employed in various separation industries. 125–128 The global shift towards sustainable production necessitates the development of novel, energy-efficient separation techniques. According to Livingston et al , 129 the filtration processes can be categorized based on (i) the propelling force required for the separation; (ii) the size of the rejected solute or, in turn, the size of the pore; and (iii) the transport mechanism governing the separation.…”

Section: Water Purification and Desalination Applicationsmentioning

confidence: 99%

Covalent organic framework-based lamellar membranes for water desalination applications

Ali,

Thebo,

Janwary

et al. 2023

RSC Sustain.

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“…Recent developments have focused on enhancing the efficiency and stability of these membranes. , For instance, a study demonstrated that the cross-linking of divalent cations could improve resistance against swelling in partially reduced GO membranes, leading to improved dye-rejection efficiencies of up to 98.88% for certain dyes . In another research by Chandio et al, a GO membrane was fabricated by employing a cross-linker, which was chosen to be serine amino acid (SAA), and reducing agent.…”

Section: Introductionmentioning

confidence: 99%

Self-Cross-Linking of MXene-Intercalated Graphene Oxide Membranes with Antiswelling Properties for Dye and Salt Rejection

Tiwary,

Singh,

Likhi

et al. 2024

ACS Environ. Au

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Membrane-based water purification is poised to play an important role in tackling the potable water crisis for safe and clean water access for the general population. Several studies have focused on near two-dimensional membranes for this purpose, which is based on an ion rejection technique. However, membrane swelling in these materials has emerged as a significant challenge because it leads to the loss of function. Herein, we report a self-crosslinked MXene-intercalated graphene oxide (GO) membrane that retains ion and dye rejection properties because the physical cross-linking interaction between Ti− O−Ti and neighboring nanosheets effectively suppresses the swelling of the membrane. In addition to the associative Ti−O−Ti bonds, C−O−C, O�C−O, and C−OH bonds are also formed, which are important for inhibiting the swelling of the membrane. To ensure the longevity of these membranes in a service context, they were subjected to heat pressurization and subsequent thermal annealing. The membrane subjected to this novel processing history exhibits minimal swelling upon immersion in solutions and retains function, rejecting salt and dyes over a wide range of salt and dye concentrations. Furthermore, these membranes successfully rejected dye and salt over a period of 72 h without a degradation of function, suggesting that these membranes have the requisite durability for water filtration applications.

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Functionalized graphene oxide-based lamellar membranes for organic solvent nanofiltration applications

Abstract: In this study, two-dimensional graphene oxide-based novel membranes were fabricated by modifying the surface of graphene oxide nanosheets with six-armed poly(ethylene glycol) (PEG) at room conditions and used for organic solvent nanofiltration applications.

Cited by 38 publications

References 47 publications

Molybdenum Sulfide Nanomaterial: A Potential Candidate for Separation Membranes

Molybdenum Sulfide Nanomaterial: A Potential Candidate for Separation Membranes

Covalent organic framework-based lamellar membranes for water desalination applications

Self-Cross-Linking of MXene-Intercalated Graphene Oxide Membranes with Antiswelling Properties for Dye and Salt Rejection

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