A comprehensive review on the synthesis and applications of ion exchange membranes

Jiang, Shanxue; Sun, Hanjun; Wang, Huijiao; Ladewig, Bradley P.; Yao, Zhiliang

doi:10.1016/j.chemosphere.2021.130817

Cited by 138 publications

(65 citation statements)

References 239 publications

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“…They are mainly used for electrodialysis (ED) in which water will dissociate into hydrogen ions and hydroxide ions at the interface of the two layers. Amphoteric membranes contain both cation and anion-exchange groups [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

De Novo Ion-Exchange Membranes Based on Nanofibers

2021

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The unique functions of nanofibers (NFs) are based on their nanoscale cross-section, high specific surface area, and high molecular orientation, and/or their confined polymer chains inside the fibers. The introduction of ion-exchange (IEX) groups on the surface and/or inside the NFs provides de novo ion-exchangers. In particular, the combination of large surface areas and ionizable groups in the IEX-NFs improves their performance through indices such as extremely rapid ion-exchange kinetics and high ion-exchange capacities. In reality, the membranes based on ion-exchange NFs exhibit superior properties such as high catalytic efficiency, high ion-exchange and adsorption capacities, and high ionic conductivities. The present review highlights the fundamental aspects of IEX-NFs (i.e., their unique size-dependent properties), scalable production methods, and the recent advancements in their applications in catalysis, separation/adsorption processes, and fuel cells, as well as the future perspectives and endeavors of NF-based IEMs.

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Section: Introductionmentioning

confidence: 99%

De Novo Ion-Exchange Membranes Based on Nanofibers

2021

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“…Most of them focus on increasing the hydrophilicity of the AEMs surface [202] and imparting an electrical charge, which is the opposite to that of the AEMs fixed groups [203,204]. Extensive reviews on the modification of commercial membranes, as well as synthesis of selective and anti-organic fouling IEMs, can be found in [205][206][207][208].…”

Section: Non-destructive Methods Of Membrane Fouling Controlmentioning

confidence: 99%

A Review on Ion-Exchange Membranes Fouling during Electrodialysis Process in Food Industry, Part 2: Influence on Transport Properties and Electrochemical Characteristics, Cleaning and Its Consequences

et al. 2021

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Ion-exchange membranes (IEMs) are increasingly used in dialysis and electrodialysis processes for the extraction, fractionation and concentration of valuable components, as well as reagent-free control of liquid media pH in the food industry. Fouling of IEMs is specific compared to that observed in the case of reverse or direct osmosis, ultrafiltration, microfiltration, and other membrane processes. This specificity is determined by the high concentration of fixed groups in IEMs, as well as by the phenomena inherent only in electromembrane processes, i.e., induced by an electric field. This review analyzes modern scientific publications on the effect of foulants (mainly typical for the dairy, wine and fruit juice industries) on the structural, transport, mass transfer, and electrochemical characteristics of cation-exchange and anion-exchange membranes. The relationship between the nature of the foulant and the structure, physicochemical, transport properties and behavior of ion-exchange membranes in an electric field is analyzed using experimental data (ion exchange capacity, water content, conductivity, diffusion permeability, limiting current density, water splitting, electroconvection, etc.) and modern mathematical models. The implications of traditional chemical cleaning are taken into account in this analysis and modern non-destructive membrane cleaning methods are discussed. Finally, challenges for the near future were identified.

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“…ED development on an industrial scale started more than 50 years ago. The increase in ED implementation is closely related to the advance in IEM properties, as deeply detailed in several studies [18]. In this way, taking advantage of the reduction in chemical reagents required compared to other processes, a number of works have attempted to optimize ED performance for various applications in the chemical, food, and drug industry as well as wastewater treatment or other environmental applications [19][20][21].…”

Section: Electro-membrane Technologies: Current Status and Challengesmentioning

confidence: 99%

Chemical and Energy Recovery Alternatives in SWRO Desalination through Electro-Membrane Technologies

Herrero-Gonzalez

Ibáñez

2021

Applied Sciences

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Electro-membrane technologies are versatile processes that could contribute towards more sustainable seawater reverse osmosis (SWRO) desalination in both freshwater production and brine management, facilitating the recovery of materials and energy and driving the introduction of the circular economy paradigm in the desalination industry. Besides the potential possibilities, the implementation of electro-membrane technologies remains a challenge. The aim of this work is to present and evaluate different alternatives for harvesting renewable energy and the recovery of chemicals on an SWRO facility by means of electro-membrane technology. Acid and base self-supply by means of electrodialysis with bipolar membranes is considered, together with salinity gradient energy harvesting by means of reverse electrodialysis and pH gradient energy by means of reverse electrodialysis with bipolar membranes. The potential benefits of the proposed alternatives rely on environmental impact reduction is three-fold: (a) water bodies protection, as direct brine discharge is avoided, (b) improvements in the climate change indicator, as the recovery of renewable energy reduces the indirect emissions related to energy production, and (c) reduction of raw material consumption, as the main chemicals used in the facility are produced in-situ. Moreover, further development towards an increase in their technology readiness level (TRL) and cost reduction are the main challenges to face.

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A comprehensive review on the synthesis and applications of ion exchange membranes

Cited by 138 publications

References 239 publications

De Novo Ion-Exchange Membranes Based on Nanofibers

De Novo Ion-Exchange Membranes Based on Nanofibers

A Review on Ion-Exchange Membranes Fouling during Electrodialysis Process in Food Industry, Part 2: Influence on Transport Properties and Electrochemical Characteristics, Cleaning and Its Consequences

Chemical and Energy Recovery Alternatives in SWRO Desalination through Electro-Membrane Technologies

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