internal concentration polarization
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2021 ◽  
Vol 412 ◽  
pp. 128607
Author(s):  
Xiangju Song ◽  
Yajing Zhang ◽  
Hamdy Maamoun Abdel-Ghafar ◽  
El-Sayed Ali Abdel-Aal ◽  
Minghua Huang ◽  
...  

Desalination ◽  
2020 ◽  
Vol 480 ◽  
pp. 114355 ◽  
Author(s):  
Mehrzad Arjmandi ◽  
Majid Peyravi ◽  
Ali Altaee ◽  
Abolfazl Arjmandi ◽  
Mahdi Pourafshari Chenar ◽  
...  

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 260 ◽  
Author(s):  
Yuanyuan Tang ◽  
Shan Li ◽  
Jia Xu ◽  
Congjie Gao

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.


2019 ◽  
Vol 5 (8) ◽  
pp. 1436-1452 ◽  
Author(s):  
Mehrzad Arjmandi ◽  
Majid Peyravi ◽  
Mahdi Pourafshari Chenar ◽  
Mohsen Jahanshahi

In this study, we explored the use of hydrophobic and hydrophilic water-stable MOFs as well as their mixture for the fabrication of high-performance MMM-based TFC FO membranes for controlling ICP.


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