Ultrathin lamellar MoS2 membranes for organic solvent nanofiltration

Jin, Ronghua; Zhang, Pengpeng; Chu, Chengquan; Cui, Peng; Ai, Xinyu; Pan, Ting; Wu, Yijian; Xu, Tongwen

doi:10.1016/j.memsci.2020.117963

Cited by 61 publications

(20 citation statements)

References 39 publications

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“…[ 13 ] For example, the permeance of laminar MoS 2 membranes was elevated by using solvent solvation to increase the interlayer spacing of their nanochannels (Figure 11g–i). [ 57 ] The permeance of acetonitrile of the 36‐nm thick MoS 2 membrane in its solvated state reached up to 5207 L m −2 h −1 bar −1 , which was four times higher than that of a dry MoS 2 membrane with the similar thickness (Figure 11j–k). These MoS 2 membranes in both dry and solvated states showed near 100% rejection toward dyes (Evans blue and methylene blue).…”

Section: D Materials Membranes For Separation In Organic Solventsmentioning

confidence: 98%

“…All these features render filtration as a versatile method for fabricating a wide range of 2D material membranes, such as MXenes, BN, and some exfoliated dichalcogenides. [12,20,23,25,40,[56][57][58] Further, filtration is easily implementable and has a cost advantage over other fabrication methods discussed below.…”

Section: Fabrication Of 2d Materials Membranesmentioning

confidence: 99%

“…Reproduced with permission. [ 57 ] Copyright 2020, Elsevier BV. l) Schematic illustration of the fabrication of 2D MOF (Zn‐TCPP(Fe)) membrane, showing the rejections of m) rose Bengal and n) brilliant blue in different organic solvents with their permeances.…”

Section: D Materials Membranes For Separation In Organic Solventsmentioning

confidence: 99%

“…Apart from the graphene, COFs, and MXenes materials discussed above, other 2D materials, including boron nitride (BN), MoS 2 , and MOFs, have also been explored for organic solvents separation. [ 25,57 ] First, hexagonal BN (h‐BN) has the potential for organic solvents separation because of its solvent resistance under harsh conditions. However, h‐BN is hydrophobic, resulting in poor processability for membrane fabrication.…”

Section: D Materials Membranes For Separation In Organic Solventsmentioning

confidence: 99%

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2D Material Based Advanced Membranes for Separations in Organic Solvents

Sui

Yuan

et al. 2020

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2D materials have shown high potentials for fabricating next‐generation membranes. To date, extensive studies have focused on the applications of 2D material membranes in gas and aqueous media. Recently, compelling opportunities emerge for 2D material membranes in separation applications in organic solvents because of their unique properties, such as ultrathin mono‐ to few‐layers, outstanding chemical resistance toward organic solvents. Hence, this review aims to provide a timely overview of the current state‐of‐the‐art of 2D material membranes focusing on their applications in organic solvent separations. 2D material membranes fabricated using graphene materials and a few representative nongraphene‐based 2D materials, including covalent organic frameworks and MXenes, are summarized. The key membrane design strategies and their effects on separation performances in organic solvents are also examined. Last, several perspectives are provided in terms of the critical challenges for 2D material membranes, including standardization of membrane performance evaluation, improving understandings of separation mechanisms, managing the trade‐off of permeability and selectivity, issues related to application versatility, long‐term stability, and fabrication scalability. This review will provide a useful guide for researchers in creating novel 2D material membranes for advancing new separation techniques in organic solvents.

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Section: D Materials Membranes For Separation In Organic Solventsmentioning

confidence: 98%

Section: Fabrication Of 2d Materials Membranesmentioning

confidence: 99%

Section: D Materials Membranes For Separation In Organic Solventsmentioning

confidence: 99%

Section: D Materials Membranes For Separation In Organic Solventsmentioning

confidence: 99%

See 2 more Smart Citations

2D Material Based Advanced Membranes for Separations in Organic Solvents

Sui

Yuan

et al. 2020

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“…S-MoS 2 membranes also exhibited a rejection rate higher than 99% for dyes larger than 1.5 nm and isopropanol permeance of as high as 707 LMH/bar under a cross-flow mode. 296 However, the stability of the membranes in organic solvents still needs further investigation.…”

Section: Other 2d Materials-based Membranesmentioning

confidence: 99%

Designing organic solvent separation membranes: polymers, porous structures, 2D materials, and their combinations

et al. 2021

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2D Vermiculite Nanolaminated Membranes for Efficient Organic Solvent Nanofiltration

Wang,

Hao,

Yan

et al. 2024

Adv Funct Materials

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Membrane separation technology has found widespread application in molecular sieving and water reclamation. Its use in organic solvent nanofiltration (OSN) has been limited by the modest permeation rates and stability of existing membranes. In this study, 2D clay nanolaminated membranes are engineered, derived from the stacking of exfoliated vermiculite nanosheets, as a potential solution for OSN. The as‐synthesized clay membrane displayed limited stability in both water and solvents due to rapid hydration or solvation of the nanosheets. To enhance the membrane's stability and sieving capabilities, cations of various valences (K+, Na+, Mg2+, Ca2+, Fe3+) are intercalated into the interlayer of the clay nanosheets. The resulting cation‐treated clay membranes display considerable enhancement in structural stability in both aqueous and organic media. Subsequently, the solvent transport behavior and separation performance of these clay membranes are evaluated and described by molecular dynamic simulation and experiments. It is identified that Fe‐intercalated nanolaminates demonstrate controllable stacking order, resulting in enhanced sieving performance with a rejection rate of over 95% for Methyl Orange and a methanol permeation rate of ≈165 L m−2 h−1 bar−1 [LMHB]. The findings of this work pave the way for the practical applications of 2D nanolaminated clay membranes in OSN.

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Ultrathin lamellar MoS2 membranes for organic solvent nanofiltration

Cited by 61 publications

References 39 publications

2D Material Based Advanced Membranes for Separations in Organic Solvents

2D Material Based Advanced Membranes for Separations in Organic Solvents

Designing organic solvent separation membranes: polymers, porous structures, 2D materials, and their combinations

2D Vermiculite Nanolaminated Membranes for Efficient Organic Solvent Nanofiltration

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