Preference of negatively charged membranes in magnesium and lithium separation by nanofiltration
Institute of Process Engineering · University of Chinese Academy of Sciences · +2 more institutions
Abstract
Despite the traditional co-ion competition theory suggesting that positively charged nanofiltration (NF) membranes are best for Li⁺/Mg²⁺ separation, practical applications predominantly utilize negatively charged membranes. Furthermore, most biological ion channels in nature are characterized by negatively charged functional groups. To address this theoretical discrepancy, we conducted a comprehensive study that integrates experimental data with molecular dynamics simulations to explore the transport behavior of Mg²⁺ and Li⁺ through negatively charged NF membranes. When using mixed salt solutions as feed, NF membranes with strong negative charges and small pore sizes achieved a high rejection of Mg²⁺ (>90%),…
Citation impact
- FWCI
- 32.45
- Percentile
- 100%
- References
- 42
Authors
6- LLLulu LiuCorresponding
Institute of Process Engineering, University of Chinese Academy of Sciences
- SLShihong Lin
Vanderbilt University
- XXXinyi Xu
Institute of Process Engineering, University of Chinese Academy of Sciences
- YWYinhua Wan
Gansu Academy of Sciences, University of Chinese Academy of Sciences
- WSWeijie Song
Institute of Process Engineering
Topics & keywords
- Nanofiltration
- Magnesium
- Membrane
- Lithium (medication)
- Preference
- Separation (statistics)
- Chemistry
- Materials science