Sharp decline in counter-ion transport number of electrodialysis ion exchange membrane on moderate increase in temperature

Mir, Fasil Qayoom; Shukla, Anupam

doi:10.1016/j.desal.2015.06.009

Cited by 12 publications

(1 citation statement)

References 22 publications

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“…In recent years Ion Exchange Membranes (IEMs) have been utilized extensively in electrodialysis systems for desalination, industrial effluent treatment possessing heavy metals, food processing and supplying basic chemical products [1][2][3][4]. So, many studies have been performed lately and a number of renovation methods have been introduced to membrane-based separation research to achieve separation systems with higher efficiency, sufficient mechanical strength and more cost-effectiveness.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of layer-by-layer ion exchange membrane by applying PDA-POSS nanocomposite onto heterogeneous cationic substrate for water treatment

Seidypoor

Bandehali

Ebrahimi

et al. 2023

CNJ

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Double-layer Cation Exchange Membranes (DLCEMs) have been prepared by surface polymerization of dopamine-co-POSS nanoparticles on a PVC-based heterogeneous cation exchange membrane. FTIR and FESEM images proved relatively uniform forming of intended DLCEMs. The FESEM images illustrated almost integrity dispensation of nanoparticles through the surface layer. Results represented that developing a nanocomposite layer resulted in surface hydrophilicity enhancement. The obtained data for Cu 2+ and Cr 2+ removal percentage for the prepared membranes represents a higher capacity for DLCEMs to remove heavy metals compared to the pristine cationic membranes. Also, membranes showed higher Cr 2+ removal capacity rather than Cu 2+ . The membrane surface modification by introducing PDA nanocomposite also caused to improving sodium permeability and flux. Furthermore, the transport number and permselectivity of the prepared CEMs generally follow an increasing procedure nearly. It should be noticed that the incorporation of POSS nanoparticles into the surface layer resulted in electrical resistance reduction obviously.

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Section: Introductionmentioning

confidence: 99%