Electro-desalination: State-of-the-art and prospective

Cao, Guang-Zhong; Alam, Md Mofasserul; Juthi, Ajkia Zaman; Zhang, Zirui; Wang, Yaoming; Jiang, Chenxiao; Xu, Tongwen

doi:10.1016/j.advmem.2022.100058

Cited by 11 publications

(4 citation statements)

References 131 publications

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“…Electromembrane processes, in particular, electrodialysis, are widely used in various industrial processes for the purification and separation of substances in aqueous solutions, including wastewater, feed source demineralization, seawater desalination, production of organic acids and bases, etc., providing high purity products and the efficiency of ion separation [ 1 , 2 , 3 , 4 , 5 ]. Electrodialysis involves ion transport through ion-exchange membranes under an applied electric potential gradient [ 6 , 7 , 8 ]. The efficiency of electrodialysis, like most other electromembrane processes, depends on two of the main parameters of membranes: Their ionic conductivity and selectivity [ 9 , 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Improvement of Selectivity of RALEX-CM Membranes via Modification by Ceria with a Functionalized Surface

et al. 2023

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Ion exchange membranes are widely used for water treatment and ion separation by electrodialysis. One of the ways to increase the efficiency of industrial membranes is their modification with various dopants. To improve the membrane permselectivity, a simple strategy of the membrane surface modification was proposed. Heterogeneous RALEX-CM membranes were surface-modified by ceria with a phosphate-functionalized surface. Despite a decrease in ionic conductivity of the prepared composite membranes, their cation transport numbers slightly increase. Moreover, the modified membranes show a threefold increase in Ca2+/Na+ permselectivity (from 2.1 to 6.1) at low current densities.

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Section: Introductionmentioning

confidence: 99%

Improvement of Selectivity of RALEX-CM Membranes via Modification by Ceria with a Functionalized Surface

et al. 2023

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“…Among these techniques, ED stands out as a promising and sustainable technology, thanks to its high selectivity for ionic compounds, ease of operation, and low carbon footprint. − In ED, target carboxylates can be selectively separated from liquid streams based on electro-driven of ions that transport through ion-exchange membranes (IEMs). − An appropriate anion exchange membrane (AEM) for the desalination of carboxylate must exhibit a high organic ion transport capability and pH stability. − Due to its affordability, robust physical-chemical stability, and chemical reactivity, polysulfone (PSF) is commonly used for membrane fabrication. , Particularly, chlorinated PSF (CMPSF), which can be easily reacted with some functional monomers via a substitution reaction, has been explored to create polymers with ion exchange capacities (IECs) for IEMs. For example, based on the functionable sites of trimethylamine and triethylamine, Tang et al.…”

Section: Introductionmentioning

confidence: 99%

Internally Cross-Linked Polysulfone-Based Anion Exchange Membranes with pH Stability for Carboxylate Separation

Lan,

Huang,

Zhou

et al. 2023

ACS EST Water

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“…By using a bipolar membrane in conjunction with cation or anion exchange membranes, an electro‐electrodialysis reactor could potentially be used to create alkali/acid products with increasing productivity and high current efficiency. As a consequence, these outcomes create a win‐win situation in terms of material transformation and consumption of energy 26,27 …”

Section: Introductionmentioning

confidence: 99%

“…As a consequence, these outcomes create a win-win situation in terms of material transformation and consumption of energy. 26,27 Based on this, we present for the first time the concept of three electrical membrane reactors. In this article, recently developed electro-membrane reactors for various chemical engineering processes are reviewed.…”

Section: Introductionmentioning

confidence: 99%

Electro‐membrane reactor: A powerful tool for green chemical engineering

et al. 2023

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Electro‐membrane reactors use electro‐membranes for preferentially diffusive/electrophoretic migration or electroosmotic separation of in‐situ reactive products, thereby maximizing the reaction rate and transport efficiencies of the products. These reactors are widely employed in the chemical engineering sectors such as green chemical synthesis, biorefining, electrocatalytic reduction/oxidation, and water treatment. In this review article, we provide an overview of the recent advances in three categories of electro‐membrane reactors in chemical engineering sectors from three categories: (1) Electro‐membrane reactors based on stacked ion‐exchange membranes for resources recovery; (2) Electro‐membrane reactors via Faraday reactions on functional anodes/cathodes for substance transformation; and (3) Closed‐loop chemical reactions and substance separation via coupling of Faraday reactions and stacked membranes. The increasing demand for low‐carbon economy has accelerated the advancement of environmentally friendly chemical engineering and sustainable processes and necessitates the use of electro‐membrane processes. The macro perspective provides a timely reference for researchers and engineers.

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Electro-desalination: State-of-the-art and prospective

Cited by 11 publications

References 131 publications

Improvement of Selectivity of RALEX-CM Membranes via Modification by Ceria with a Functionalized Surface

Improvement of Selectivity of RALEX-CM Membranes via Modification by Ceria with a Functionalized Surface

Internally Cross-Linked Polysulfone-Based Anion Exchange Membranes with pH Stability for Carboxylate Separation

Electro‐membrane reactor: A powerful tool for green chemical engineering

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