Pi electron cloud mediated separation of aromatics using supported ionic liquid (SIL) membrane having antibacterial activity

Jebur, Mahmood; Sengupta, Arijit; Chiao, Yu‐Hsuan; Kamaz, Mohanad; Qian, Xianhong; Wickramasinghe, Ranil

doi:10.1016/j.memsci.2018.03.064

Cited by 50 publications

(15 citation statements)

References 49 publications

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“…Figure is showing the % sorption of toluene, styrene, divinyl benzene on different PILs. Similar π‐electron cloud mediated transfer was observed for supported ionic liquid membranes …”

Section: Resultssupporting

confidence: 75%

Single‐Step Synthesis of Novel Polyionic Liquids Having Antibacterial Activity and Showing π‐Electron Mediated Selectivity in Separation of Aromatics

Ethirajan¹,

Sengupta

Jebur

et al. 2018

ChemistrySelect

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One‐pot synthesis of polyionic liquids (PILs) from pyridinium and phosphonium family was reported in the present investigation. The size exclusion chromatographic (SEC) method was employed for the determination of the molecular weight of the polymer and the dispersity during synthesis. The aggregation behavior of these PILs was investigated in polar‐ protic, polar‐ aprotic and apolar‐aprotic solvents. The FTIR spectroscopic analysis was utilized for the characterization of the functional groups in PILs, whereas 1H‐NMR analysis was employed for structural characterization of the PILs in terms of the existence of magnetically non‐equivalent protons. UV‐Vis spectroscopic characterization was also employed for these PILs. The anti‐bacterial activity of these PILs were investigated using two gram positive bacteria staphylococcus aureus and pseudomonas aeruginosa. Plate reader method was used to determine the ratio of live to dead bacterial cell in presence of PILs as a function of time by monitoring the fluorescence wave length of the corresponding cells after tagging them suitably with the appropriate dye. The plate counting method was also employed for the direct counting of the number of colony of the bacteria as a function of time in presence of the synthesized PILs. A π‐electron mediated separation was found to bring the selectivity in sorption of aromatics on these PILs.

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“…Figure is showing the % sorption of toluene, styrene, divinyl benzene on different PILs. Similar π‐electron cloud mediated transfer was observed for supported ionic liquid membranes …”

Section: Resultssupporting

confidence: 75%

Single‐Step Synthesis of Novel Polyionic Liquids Having Antibacterial Activity and Showing π‐Electron Mediated Selectivity in Separation of Aromatics

Ethirajan¹,

Sengupta

Jebur

et al. 2018

ChemistrySelect

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“…As analyzed in the review of Koók et al [27] based on previous literature findings, proper selection of the IL to be embedded in the support layer can potentially suppress biofouling. For instance, it has been found by Jebur et al [39] that liquid membranes prepared with imidazolium cation-based hydrophilic (with [Cl] − and [Br] − anions) and hydrophobic (with [NTf 2 ] − anion) ILs considerably lowered the numbers of growing colonies for strains such as Staphylococcus aureus and Pseudomonas aeruginosa. Therefore, a suitable choice and deployment of ionic liquids could be seen as a potential way to design membranes with a more efficient resistance to microbiological attacks and counteract the biofouling of membrane separators in MFCs [27].…”

Section: Research Progress With Supported Ionic Liquid Membranes For mentioning

confidence: 99%

Development and Application of Supported Ionic Liquid Membranes in Microbial Fuel Cell Technology: A Concise Overview

et al. 2020

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Membrane separators are key elements of microbial fuel cells (MFCs), especially of those constructed in a dual-chamber configuration. Until now, membranes made of Nafion have been applied the most widely to set-up MFCs. However, there is a broader agreement in the literature that Nafion is expensive and in many cases, does not meet the actual (mainly mass transfer-specific) requirements demanded by the process and users. Driven by these issues, there has been notable progress in the development of alternative materials for membrane fabrication, among which those relying on the deployment of ionic liquids are emerging. In this review, the background of and recent advances in ionic liquid-containing separators, particularly supported ionic liquid membranes (SILMs), designed for MFC applications are addressed and evaluated. After an assessment of the basic criteria to be fulfilled by membranes in MFCs, experiences with SILMs will be outlined, along with important aspects of transport processes. Finally, a comparison with the literature is presented to elaborate on how MFCs installed with SILM perform relative to similar systems assembled with other, e.g., Nafion, membranes.

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“…DVIMBr was synthesized from VIM and allylbromide. [32] In ad ry glass flask equipped with as tirrer,e quimolar amounts of VIM and allylbromide were mixed and stirred at 60 8C. After 3h,t he mixture separated two phases, and the top supernatant phase was discarded.…”

Section: Synthesis Of Ionic Liquidmentioning

confidence: 99%

Trapping of Polysulfides with Sulfur‐Rich Poly Ionic Liquid Cathode Materials for Ultralong‐Life Lithium–Sulfur Batteries

Liu

Zeng

et al. 2020

ChemSusChem

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Sulfur‐rich polymers synthesized by inverse vulcanization are promising cathodes for Li–S batteries and can suppress the shuttle effect to improve the cycling properties of Li–S batteries. However, developing a sulfur‐rich copolymer with new chemical functionality to enhance performance of Li–S batteries remains a huge challenge. In this report, a sulfur‐rich polymer cathode containing ionic liquid segments named poly(sulfur‐co‐1‐vinyl‐3‐allylimidazolium bromide) [poly(S‐co‐DVIMBr)] was obtained by the inverse vulcanization of S8 with DVIMBr and used as cathode for the first time. This sulfur‐rich poly ionic liquid cathode showed effective suppression of the shuttle effect through joint effects of the stable chemical bonding of C−S and strong cation absorption for lithium polysulfides, which was confirmed by DFT calculations. In particular, the Li–S cell with poly(S‐co‐DVIMBr) cathode delivered high capacity retention of 90.22 % even over 900 cycles. Developing sulfur‐rich poly ionic liquids may provide a new strategy of introducing the functional groups with cations into the cathode materials for suppressing the shuttle effect and improving the performance of Li–S batteries.

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Pi electron cloud mediated separation of aromatics using supported ionic liquid (SIL) membrane having antibacterial activity

Cited by 50 publications

References 49 publications

Single‐Step Synthesis of Novel Polyionic Liquids Having Antibacterial Activity and Showing π‐Electron Mediated Selectivity in Separation of Aromatics

Single‐Step Synthesis of Novel Polyionic Liquids Having Antibacterial Activity and Showing π‐Electron Mediated Selectivity in Separation of Aromatics

Development and Application of Supported Ionic Liquid Membranes in Microbial Fuel Cell Technology: A Concise Overview

Trapping of Polysulfides with Sulfur‐Rich Poly Ionic Liquid Cathode Materials for Ultralong‐Life Lithium–Sulfur Batteries

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