Ion-capture electrodialysis using multifunctional adsorptive membranes

Uliana, Adam; Bui, Ngoc Thang; Kamcev, Jovan; Taylor, Mercedes K.; Urban, Jeffrey J.; Long, Jeffrey R.

doi:10.1126/science.abf5991

Cited by 190 publications

(119 citation statements)

References 68 publications

(43 reference statements)

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“…Different ions have different interactions with zeolites because of size and charge effects which dictate the sorption mechanism onto zeolites. Hence, more research on the development of materials with a more selective capture of target ions [ 64 ] is needed to enable a more precise capture of desired ions (i.e., the capture of the desired ion should be maximized while other competing ions should readily permeate through the membrane).…”

Section: Recent Progress In Pollutant Removal Using Mixed Matrix Membranesmentioning

confidence: 99%

Emerging Materials to Prepare Mixed Matrix Membranes for Pollutant Removal in Water

et al. 2021

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Various pollutants of different sizes are directly (e.g., water-borne diseases) and indirectly (e.g., accumulation via trophic transfer) threatening our water health and safety. To cope with this matter, multifaceted approaches are required for advanced wastewater treatment more efficiently. Wastewater treatment using mixed matrix membranes (MMMs) could provide an excellent alternative since it could play two roles in pollutant removal by covering adsorption and size exclusion of water contaminants simultaneously. This paper provides an overview of the research progresses and trends on the emerging materials used to prepare MMMs for pollutant removal from water in the recent five years. The transition of the research trend was investigated, and the most preferred materials to prepare MMMs were weighed up based on the research trend. Various application examples where each emerging material was used have been introduced along with specific mechanisms underlying how the better performance was realized. Lastly, the perspective section addresses how to further improve the removal efficiency of pollutants in an aqueous phase, where we could find a niche to spot new materials to develop environmentally friendly MMMs, and where we could further apply MMMs.

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Section: Recent Progress In Pollutant Removal Using Mixed Matrix Membranesmentioning

confidence: 99%

Emerging Materials to Prepare Mixed Matrix Membranes for Pollutant Removal in Water

et al. 2021

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“…A good counterion permselectivity is needed for numerous applications of IEMs: for processing solutions in the agro-food industry, in particular, for the production of fertilizers [4,5], in fuel cells [6][7][8][9], flow batteries [9][10][11] and other processes [12][13][14][15]. Water treatment remains an important application of IEMs [16,17], the significance of which increases due to the degradation of water quality in natural sources affected by human activity [18,19].…”

Section: Introductionmentioning

confidence: 99%

Mathematical Description of the Increase in Selectivity of an Anion-Exchange Membrane Due to Its Modification with a Perfluorosulfonated Ionomer

Kozmai

Pismenskaya

Nikonenko

2022

IJMS

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In this paper, we simulate the changes in the structure and transport properties of an anion-exchange membrane (CJMA-7, Hefei Chemjoy Polymer Materials Co. Ltd., China) caused by its modification with a perfluorosulfonated ionomer (PFSI). The modification was made in several stages and included keeping the membrane at a low temperature, applying a PFSI solution on its surface, and, subsequently, drying it at an elevated temperature. We applied the known microheterogeneous model with some new amendments to simulate each stage of the membrane modification. It has been shown that the PFSI film formed on the membrane-substrate does not affect significantly its properties due to the small thickness of the film (»4 µm) and similar properties of the film and substrate. The main effect is caused by the fact that PFSI material “clogs” the macropores of the CJMA-7 membrane, thereby, blocking the transport of coions through the membrane. In this case, the membrane microporous gel phase, which exhibits a high selectivity to counterions, remains the primary pathway for both counterions and coions. Due to the above modification of the CJMA-7 membrane, the coion (Na+) transport number in the membrane equilibrated with 1 M NaCl solution decreased from 0.11 to 0.03. Thus, the modified membrane became comparable in its transport characteristics with more expensive IEMs available on the market.

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“…[ 5 ] The advantages of low energy consumption, simple operation, and good reusability promote membrane separation to be widely used in various fields. [ 6 ] In particular, membrane separation can give full play to its technical advantages in the treatment of liquid waste generated from spent fuel reprocessing process. [ 7 ] The acidity of the liquid waste is usually higher than 3 mol L −1 , which requires calcination denitration, dilution, or neutralization to reduce the acidity of the solution.…”

Section: Introductionmentioning

confidence: 99%

Covalent Organic Framework Membrane with Turing Structures for Deacidification of Highly Acidic Solutions

Zhou

Cao

et al. 2021

Adv Funct Materials

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The deacidification of highly acidic industrial wastewater, such as the spent fuel reprocessing feed liquid, is of great significance for the smooth progress of the subsequent treatment processes. Herein, a novel covalent organic framework (COF) membrane with bidirectional anisotropic Turing structures is synthesized for the first time and used for deacidification. The COF membrane presents linear and hydrophobic properties on one side and porous and superhydrophilic properties on the other side, which makes the water permeability of hydrophilic side 45 times higher than that of the hydrophobic side and effectively prevents the reverse osmosis of water. Impressively, the COF membrane has excellent thermal, acid, and irradiation stabilities, and an extraordinarily high ability to intercept metal ions in a complex multi‐ion solution containing 5 m HNO3, with the interception rate up to 100%. However, H+ can easily pass through the membrane with the permeation flux of 1015.7 mol L−1 m−2, which realizes the efficient deacidification of high acidic solutions. This study provides not only a new idea for the design and preparation of Turing‐structural membranes, but also a feasible strategy for the deacidification and process simplification of spent fuel reprocessing feed liquid and other industrial wastewater with high acidity.

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Ion-capture electrodialysis using multifunctional adsorptive membranes

Cited by 190 publications

References 68 publications

Emerging Materials to Prepare Mixed Matrix Membranes for Pollutant Removal in Water

Emerging Materials to Prepare Mixed Matrix Membranes for Pollutant Removal in Water

Mathematical Description of the Increase in Selectivity of an Anion-Exchange Membrane Due to Its Modification with a Perfluorosulfonated Ionomer

Covalent Organic Framework Membrane with Turing Structures for Deacidification of Highly Acidic Solutions

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