Construction of SiO2@MWNTs incorporated PVDF substrate for reducing internal concentration polarization in forward osmosis

2018 ◽  
Vol 564 ◽  
pp. 328-341 ◽  
Author(s):  
Xuan Zhang ◽  
Liang Shen ◽  
Chen-Yu Guan ◽  
Chu-Xuan Liu ◽  
Wan-Zhong Lang ◽  
...  
Keyword(s):  
Concentration Polarization ◽  
Forward Osmosis ◽  
Internal Concentration ◽  
Internal Concentration Polarization

scholarly journals Dual-layered nanocomposite substrate membrane based on polysulfone/graphene oxide for mitigating internal concentration polarization in forward osmosis

Polymer ◽  
2017 ◽  
Vol 110 ◽  
pp. 36-48 ◽  
Author(s):  
Sungil Lim ◽  
Myoung Jun Park ◽  
Sherub Phuntsho ◽  
Leonard D. Tijing ◽  
Grace M. Nisola ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Concentration Polarization ◽  
Forward Osmosis ◽  
Internal Concentration ◽  
Internal Concentration Polarization

Internal concentration polarization in forward osmosis: role of membrane orientation

Desalination ◽  
2006 ◽  
Vol 197 (1-3) ◽  
pp. 1-8 ◽  
Author(s):  
Gordon T. Gray ◽  
Jeffrey R. McCutcheon ◽  
Menachem Elimelech
Keyword(s):  
Concentration Polarization ◽  
Forward Osmosis ◽  
Membrane Orientation ◽  
Internal Concentration ◽  
Internal Concentration Polarization

scholarly journals Thin Film Composite Forward Osmosis Membrane with Single-Walled Carbon Nanotubes Interlayer for Alleviating Internal Concentration Polarization

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 260 ◽  
Author(s):  
Yuanyuan Tang ◽  
Shan Li ◽  
Jia Xu ◽  
Congjie Gao
Keyword(s):  
Thin Film ◽  
Concentration Polarization ◽  
Water Flux ◽  
Forward Osmosis ◽  
Feed Solution ◽  
Film Composite ◽  
Thin Film Composite ◽  
Internal Concentration ◽  
Tfc Membrane ◽  
Internal Concentration Polarization

This study reported a series of thin film composite (TFC) membranes with single-walled nanotubes (SWCNTs) interlayers for the forward osmosis (FO) application. Pure SWCNTs with ultrahigh length-to-diameter ratio and without any functional group were applied to form an interconnect network interlayer via strong π-π interactions. Compared to the TFC membrane without SWCNTs interlayer, our TFC membrane with optimal SWCNTs interlayer exhibited more than three times the water permeability (A) of 3.3 L m−2h−1bar−1 in RO mode with 500 mg L−1 NaCl as feed solution and nearly three-fold higher FO water flux of 62.8 L m−2 h−1 in FO mode with the deionized water as feed solution and 1 M NaCl as draw solution. Meanwhile, the TFC membrane with SWCNTs interlayer exhibited significantly reduced membrane structure parameters (S) to immensely mitigate the effect of internal concentration polarization (ICP) in support layer with micro-sized pores in favor of higher water flux. It showed that the pure SWCNTs interlayer could be an effective strategy to apply in FO membranes.

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