Electrohydrodynamic ion regulation in soft-coated nanochannels: A comparative assessment of geometry effects on desalination performance
Iran University of Science and Technology · Centre National de la Recherche Scientifique · +2 more institutions
Abstract
• Reverse-conical nanochannels maximize ion rejection via strong field focusing and enhanced Donnan exclusion. • Soft-layer charge density critically tunes the rejection–flux tradeoff across all tested electrolytes. • Ion hydration and mobility govern selectivity trends, making NaCl the most sensitive to PEL charge. • Pressure and voltage modulate electrohydrodynamics, shifting transport from surface-dominated to bulk-conductive. • Coupled PNP–NS simulations reveal reverse-conical geometry as the optimal design for high-efficiency desalination. Meeting the growing demand for high-quality freshwater requires membrane systems that can provide strong ion discrimination while sustaining adequate water transport.…
Citation impact
- FWCI
- 31.97
- Percentile
- 99%
- References
- 63
Authors
4- AAAmir Abbas Nazari
Iran University of Science and Technology
- MKMahdi Khatibi
Iran University of Science and Technology
- SNSeyed Nezameddin AshrafizadehCorresponding
Iran University of Science and Technology
- JFJérôme F. L. Duval
Centre National de la Recherche Scientifique, Laboratoire Interdisciplinaire des Environnements Continentaux, Université de Lorraine
Topics & keywords
- Electrohydrodynamics
- Ion
- Desalination
- Electrolyte
- Conductance
- Voltage
- Work (physics)
- Ion transporter
- Reduced inequalities