Fouling minimization with nanofluidic membranes; How electric field may help

Aminnia, Ahmad; Khatibi, Mahdi; Nezameddin Ashrafizadeh, Seyed

doi:10.1016/j.seppur.2023.124698

Cited by 11 publications

(6 citation statements)

References 64 publications

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“…By combining various geometries, nanochannels can exhibit special and enhanced features. 59,60 In another study, Bauer et al, 61 used numerical simulations to investigate the transport of finite-size particles through asymmetrical two-dimensional channels with irregular shapes. They also explored the transient binding of these particles to channel walls under sticky boundary conditions.…”

Section: Nanochannel Geometries and Applicationsmentioning

confidence: 99%

“…Such investigations are essential for advancing progress and enhancing system performance. Aminnia et al , 60 have explored the potential of nanofluidic membranes and electric fields to reduce fouling in water purification, shedding light on how higher soft layer charge density and intermediate-frequency AC fields can mitigate fouling, thereby improving overall system performance and lifespan.…”

Section: Introductionmentioning

confidence: 99%

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Smart nanochannels: tailoring ion transport properties through variation in nanochannel geometry

Heydari,

Khatibi,

Ashrafizadeh

2023

Phys. Chem. Chem. Phys.

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Section: Nanochannel Geometries and Applicationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Smart nanochannels: tailoring ion transport properties through variation in nanochannel geometry

Heydari,

Khatibi,

Ashrafizadeh

2023

Phys. Chem. Chem. Phys.

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“…In electroosmotic flow (EOF), fluid motion is induced by an external electric field applied tangentially to the surface, primarily due to the presence of an electrical double layer (EDL) near the surface . Given its versatility across various domains such as chemical and biological analysis, , electronic device, − drug delivery, − energy generation, − and separation processes, − EOF has attracted the attention of many researchers. Additionally, electroosmosis finds prominent applications in micro/nanofluidic systems for efficient fluid pumping while minimizing analyte diffusion. − …”

Section: Introductionmentioning

confidence: 99%

Ionic Transport Behavior of Soft Nanochannels for Newtonian and Non-Newtonian Electrolytes

Seifollahi,

Khatibi,

Ashrafizadeh

2024

Ind. Eng. Chem. Res.

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With the rapid progress in micro/nanofluidics, understanding the fundamental mechanisms of ionic transport, fluid behavior, and microsystem dynamics is more crucial than ever. Given the substantial expenses associated with manufacturing such systems, computational simulations offer a cost-effective avenue for advancing this industry sector while minimizing financial burdens. In this context, the current study explores the impact of electrolyte characteristics by numerically analyzing electroosmotic flow (EOF) in a conical nanochannel featuring charged slippery surfaces coated with a polyelectrolyte layer. Two types of electrolytic fluids, namely, water (representing a Newtonian fluid) and blood plasma (representing a non-Newtonian fluid), were investigated. The behavior of non-Newtonian electrolytes was modeled using the Bingham−Papanastasiou model. The governing equations of this nonlinear model, namely, the Poisson−Nernst−Planck and Navier−Stokes equations, were solved using the finite element method. Various parameters including slip length, surface charge density, soft layer charge density, and electrolyte concentration were systematically adjusted to assess three key aspects: EOF, ionic selectivity, and current rectification. The findings revealed that increasing the slip length significantly enhanced the EOF for both types of electrolytes. For instance, the EOF for platelets within the nanochannel core increased by 1.5 times with a slip length extension from 0 to 10 nm. Additionally, applying a positive voltage to the nanochannel amplified the EOF, particularly when the wall and soft layer charges were similar. For example, decreasing the wall charge density from 0 to −0.02 C/m 2 while applying a positive voltage led to a 1.5-fold increase in platelet EOF, rising from 0.028 to 0.042 m/s.

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“…With the development of nanomaterial production techniques, researchers’ focus has shifted from the traditionally used porous membrane to nanochannels with tailorable shape and properties. − Nanofluidic-based reverse electrodialysis (NRED) refers to this technique, which is based on the controlled mixing of fluids. Nanochannels with an asymmetrical shape and a surface modification are used to regulate ion transport across the membrane. ,− …”

Section: Introductionmentioning

confidence: 99%

Layer-by-Layer Nanofluidic Membranes for Promoting Blue Energy Conversion

Khatibi,

Dartoomi,

Ashrafizadeh

2023

Langmuir

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Fouling minimization with nanofluidic membranes; How electric field may help

Cited by 11 publications

References 64 publications

Smart nanochannels: tailoring ion transport properties through variation in nanochannel geometry

Smart nanochannels: tailoring ion transport properties through variation in nanochannel geometry

Ionic Transport Behavior of Soft Nanochannels for Newtonian and Non-Newtonian Electrolytes

Layer-by-Layer Nanofluidic Membranes for Promoting Blue Energy Conversion

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