Alignment of MXene based membranes to enhance water purification

Tao, Mingjie; Cheng, Shiqi; Han, Xiaole; Fan, Yi; Li, Runhao; Yu, Rong; Sun, Yue; Liu, Yi

doi:10.1016/j.memsci.2022.120965

Cited by 28 publications

(13 citation statements)

References 55 publications

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“…Spectacular design was proposed by Tao et al via the intercalation of carboxymethyl-β-cyclodextrin (CM-β-CD) into Ti 3 C 2 T x channels. Considerable enhancement in total permeance of aqueous MB solution was achieved for Ti 3 C 2 T x /CM-β-CD membrane compared to the pristine MXene from 18.5 up to 431 L/m 2 × h × bar (23-fold) with the rejection rate greater than 99% for five different dyes . These studies evidently display the importance of intercalation of specific nanoparticles into MXene channels to modulate the interlayer distance and, hence, the flux.…”

Section: Dye Removalmentioning

confidence: 99%

“…Excellent improvement (%408) in water permeability of nanocomposite membrane at a 1/1 mass ratio of MXene/Al 2 O 3 was observed increasing from ∼21 to 86 L/m 2 × h × bar with a MB rejection rate of 99%. Spectacular design was proposed by Tao et al via the intercalation of carboxymethyl-β-cyclodextrin (CM-β-CD) into Ti 3 C 2 T x channels. Considerable enhancement in total permeance of aqueous MB solution was achieved for Ti 3 C 2 T x /CM-β-CD membrane compared to the pristine MXene from 18.5 up to 431 L/m 2 × h × bar (23-fold) with the rejection rate greater than 99% for five different dyes .…”

Section: Dye Removalmentioning

confidence: 99%

“…This superior performance was ascribed to the ability of Ag to improve the resistance of membrane towards organic foulants via its hydrophilic nature. Most 193 Wei et al, 194 Liu et al, 227 Feng et al, 229 Zhang et al, 211 Long et al, 215 Tong et al, 219 Yi et al, 224 Gong et al, 233 Kim et al, 237 He et al, 214 and Tao et al 217 ). Arrows represent the alteration in MXene content in a nanocomposite membrane.…”

Section: Membrane-based Separationmentioning

confidence: 99%

See 2 more Smart Citations

Can MXene be the Effective Nanomaterial Family for the Membrane and Adsorption Technologies to Reach a Sustainable Green World?

Massoumılari

Velioğlu

2023

ACS Omega

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Environmental pollution has intensified and accelerated due to a steady increase in the number of industries, and exploring methods to remove hazardous contaminants, which can be typically divided into inorganic and organic compounds, have become inevitable. Therefore, the development of efficacious technology for the separation processes is of paramount importance to ensure the environmental remediation. Membrane and adsorption technologies garnered attention, especially with the use of novel and high performing nanomaterials, which provide a target-specific solution. Specifically, widespread use of MXene nanomaterials in membrane and adsorption technologies has emerged due to their intriguing characteristics, combined with outstanding separation performance. In this review, we demonstrated the intrinsic properties of the MXene family for several separation applications, namely, gas separation, solvent dehydration, dye removal, separation of oil-in-water emulsions, heavy metal ion removal, removal of radionuclides, desalination, and other prominent separation applications. We highlighted the recent advancements used to tune separation potential of the MXene family such as the manipulation of surface chemistry, delamination or intercalation methods, and fabrication of composite or nanocomposite materials. Moreover, we focused on the aspects of stability, fouling, regenerability, and swelling, which deserve special attention when the MXene family is implemented in membrane and adsorption-based separation applications.

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Section: Dye Removalmentioning

confidence: 99%

Section: Dye Removalmentioning

confidence: 99%

Section: Membrane-based Separationmentioning

confidence: 99%

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Can MXene be the Effective Nanomaterial Family for the Membrane and Adsorption Technologies to Reach a Sustainable Green World?

Massoumılari

Velioğlu

2023

ACS Omega

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“…Ti 3 C 2 T X (MXene) nanosheets have shown promising applications in electrochemistry, , homogeneous catalysis, , water purification, − and gas separation. , Importantly, abundant functional groups (Tx = O, -OH, and -F) on the surface of the nanosheets can create narrow channels between MXene stacks . Typically, external forces (e.g., filtration by pressure or spin-coating by centrifugal force) are required to produce highly oriented lamellar MSMs. , However, these processes are mainly focused on laboratory-scale flat substrates.…”

mentioning

confidence: 99%

Rational Design of MXene Hollow Fiber Membranes for Gas Separations

et al. 2023

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One scalable and facile dip-coating approach was utilized to construct a thin CO2-selection layer of Pebax/PEGDA-MXene on a hollow fiber PVDF substrate. An interlayer spacing of 3.59 Å was rationally designed and precisely controlled for the MXene stacks in the coated layer, allowing efficient separation of the CO2 (3.3 Å) from N2 (3.6 Å) and CH4 (3.8 Å). In addition, CO2-philic nanodomains in the separation layer were constructed by grafting PEGDA into MXene interlayers, which enhanced the CO2 affinity through the MXene interlayers, while non-CO2-philic nanodomains could promote CO2 transport due to the low resistance. The membrane could exhibit optimal separation performance with a CO2 permeance of 765.5 GPU, a CO2/N2 selectivity of 54.5, and a CO2/CH4 selectivity of 66.2, overcoming the 2008 Robeson upper bounds limitation. Overall, this facile approach endows a precise controlled molecular sieving MXene membrane for superior CO2 separation, which could be applied for interlayer spacing control of other 2D materials during membrane construction.

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“…With the acceleration of industrialization, shortages of water and resources have become increasingly urgent. − Separation membranes as a new-emerging force have been intensively employed for wastewater treatment and resource recovery in chemical, pharmaceutical, and other industries. − However, the trade-off effect between permeability and selectivity has been hindering further applications of the membranes. − Surface patterning has been proven to be effective in precisely regulating the nanostructures, functions, and performance of the membranes. ,, The diverse surface patterns would endow the membrane with various characteristics, such as low mass transfer resistance, large surface area, high wettability, and so on, thereby allowing for a better permselectivity and overcoming the trade-off effect. − …”

mentioning

confidence: 99%

Locking Patterned Carbon Nanotube Cages by Nanofibrous Mats to Construct Cucurbituril[n]-Based Ultrapermselective Dye/Salt Separation Membranes

Zhao,

Cao,

Luo

et al. 2023

Nano Lett.

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Surface patterning is a promising strategy to overcome the trade-off effect of separation membranes. Herein, a bottom-up patterning strategy of locking micron-sized carbon nanotube cages (CNCs) onto a nanofibrous substrate is developed. The strongly enhanced capillary force triggered by the abundant narrow channels in CNCs endows the precisely patterned substrate with excellent wettability and antigravity water transport. Both are crucial for the preloading of cucurbit[n]uril (CB6)-embeded amine solution to form an ultrathin (∼20 nm) polyamide selective layer clinging to CNCs-patterned substrate. The CNCs-patterning and CB6 modification result in a 40.2% increased transmission area, a reduced thickness, and a lowered cross-linking degree of selective layer, leading to a high water permeability of 124.9 L•m −2 h −1 bar −1 and a rejection of 99.9% for Janus Green B (511.07 Da), an order of magnitude higher than that of commercial membranes. The new patterning strategy provides technical and theoretical guidance for designing next-generation dye/salt separation membranes.

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Alignment of MXene based membranes to enhance water purification

Cited by 28 publications

References 55 publications

Can MXene be the Effective Nanomaterial Family for the Membrane and Adsorption Technologies to Reach a Sustainable Green World?

Can MXene be the Effective Nanomaterial Family for the Membrane and Adsorption Technologies to Reach a Sustainable Green World?

Rational Design of MXene Hollow Fiber Membranes for Gas Separations

Locking Patterned Carbon Nanotube Cages by Nanofibrous Mats to Construct Cucurbituril[n]-Based Ultrapermselective Dye/Salt Separation Membranes

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