Preparation and surface modification of PVC/SBR heterogeneous cation exchange membrane with silver nanoparticles by plasma treatment

Hosseini, S.M.; Madaeni, S.S.; Khodabakhshi, A.R.; Zendehnam, Akbar

doi:10.1016/j.memsci.2010.09.043

Cited by 116 publications

(58 citation statements)

References 45 publications

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“…where t sol þ is the solution transport number of the counter-ion in the membrane (with no concentration profiles in the solution) [16,17]. Sodium chloride has a solution transport number of approximately 0.39 for its cation in water at 25 1C [18].…”

Section: Transport Number and Permselectivitymentioning

confidence: 99%

Novel composite cation exchange films based on sulfonated PVDF for electromembrane separations

Farrokhzad

Kikhavani

Monnaie

et al. 2015

Journal of Membrane Science

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Section: Transport Number and Permselectivitymentioning

confidence: 99%

Novel composite cation exchange films based on sulfonated PVDF for electromembrane separations

Farrokhzad

Kikhavani

Monnaie

et al. 2015

Journal of Membrane Science

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“…Impedance spectroscopy measurements were done at room temperature in 0.5 M NaCl solution following the procedure described earlier [25]. The electrical resistance of equilibrated membrane was measured with a digital LCR meter (HP 4262A) at a frequency of 1500 kHz and a clip cell composed of two graphite electrodes fixed in a plexiglass tank ( Figure 2).…”

Section: Equationmentioning

confidence: 99%

Synthesis of a monovalent selective cation exchange membrane to concentrate reverse osmosis brines by electrodialysis

et al. 2015

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In this work, novel monovalent selective cation exchange membranes (CEMs) with different mixtures of polyvinylidene fluoride (PVDF) and sulfonated PVDF (S-PVDF) were synthesized. The selected composite membranes were modified by surface polymerization of polyaniline (PANi) to improve their monovalent cation selectivity. PANi was doped with p-toluene sulfonic acid (pTSA) or L-valine (2-amino-3-methylbutanoic acid) and the selectivity of each CEM was determined. Membrane properties, such as chemical composition, water uptake, ion exchange capacity, permselectivity, contact angle and crystallinity were measured. The influence of the applied voltage was also studied. The newly developed membranes were used for electrodialytic concentration of NaCl from synthetic reverse osmosis (RO) brine. Doped membranes with pTSA ( =0.13, =3.59) and valine ( =0.09, =0.8) have a higher selectivity for sodium than the composite ones ( =0.63, =6.82). Moreover, the increase of applied voltage results in an increase of the selectivity for monovalent ions.

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“…Modification of membrane surface is one of the most used methods for improving membrane characteristics. In surface modification using nanoparticles, the nanoparticle can be deposited on the membrane surface by using a plasma treatment method [41][42][43]. In a plasma treatment, the base membrane is placed in a vacuum reactor.…”

Section: Introduction Of Nanoparticles Into Iemmentioning

confidence: 99%

Improving ion-exchange membrane properties by the role of nanoparticles

Ariono

Khoiruddin

2017

AIP Conference Proceedings

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Abstract. Extensive application of synthetic ion-exchange membrane (IEM) in many areas has necessitated the improvement of their properties. Recently, the introduction of nanoparticles into polymeric membrane has attracted growing interest since the combination of both materials results in better properties. This well-known mixed-matrix membrane exhibits superior characteristics compared to an individual polymeric membrane. Properties of the nanoparticles such as electrical conductivity, hydrophilicity, and adsorption capacity can be utilized to produce the IEM with better physicochemical, electrochemical, and mechanical characteristics. The nanoparticles may also be used to achieve a specific characteristic such as an antibacterial property and monovalent ion permselectivity. In this paper, preparation, the role of inorganic materials and performance of mixed-matrix IEM are reviewed. In addition, challenges facing mixed-matrix IEM and strategies taken to overcome those challenges and future perspectives are discussed.

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Preparation and surface modification of PVC/SBR heterogeneous cation exchange membrane with silver nanoparticles by plasma treatment

Cited by 116 publications

References 45 publications

Novel composite cation exchange films based on sulfonated PVDF for electromembrane separations

Novel composite cation exchange films based on sulfonated PVDF for electromembrane separations

Synthesis of a monovalent selective cation exchange membrane to concentrate reverse osmosis brines by electrodialysis

Improving ion-exchange membrane properties by the role of nanoparticles

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