Electrospray interfacial polymerization for a loose NF membrane: Super-selective dye separation in saline dye wastewater treatment

Author(s):  
Yesol Kang ◽  
Jaewon Jang ◽  
Yunho Lee ◽  
In S. Kim

A sulfonated graphene oxide (SGO) composite loose nanofiltration membrane (LNM) with high water permeance was fabricated by electrospray interfacial polymerization (EIP) method to treat saline dye wastewater. SGO incorporated EIP...

2020 ◽  
Vol 12 (32) ◽  
pp. 36148-36158 ◽  
Author(s):  
Yesol Kang ◽  
Jaewon Jang ◽  
Suhun Kim ◽  
Joohwan Lim ◽  
Yunho Lee ◽  
...  

2015 ◽  
Vol 3 (33) ◽  
pp. 17445-17458 ◽  
Author(s):  
Wei Cui ◽  
Jin Ji ◽  
Yi-Feng Cai ◽  
Hang Li ◽  
Rong Ran

Illustration of a self-healing, anti-fatigue GHA gel being applied as a recyclable adsorbent for dye wastewater treatment.


2018 ◽  
Vol 353 ◽  
pp. 460-471 ◽  
Author(s):  
Shuang Zhao ◽  
Hongtai Zhu ◽  
Zhan Wang ◽  
Peng Song ◽  
Min Ban ◽  
...  

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 269 ◽  
Author(s):  
Yu-Hsuan Chiao ◽  
Tanmoy Patra ◽  
Micah Belle Marie Yap Ang ◽  
Shu-Ting Chen ◽  
Jorge Almodovar ◽  
...  

Nanofiltration membranes have evolved as a promising solution to tackle the clean water scarcity and wastewater treatment processes with their low energy requirement and environment friendly operating conditions. Thin film composite nanofiltration membranes with high permeability, and excellent antifouling and antibacterial properties are important component for wastewater treatment and clean drinking water production units. In the scope of this study, thin film composite nanofiltration membranes were fabricated using polyacrylonitrile (PAN) support and fast second interfacial polymerization modification methods by grafting polyethylene amine and zwitterionic sulfobutane methacrylate moieties. Chemical and physical alteration in structure of the membranes were characterized using methods like ATR-FTIR spectroscopy, XPS analysis, FESEM and AFM imaging. The effects of second interfacial polymerization to incorporate polyamide layer and ‘ion pair’ characteristics, in terms of water contact angle and surface charge analysis was investigated in correlation with nanofiltration performance. Furthermore, the membrane characteristics in terms of antifouling properties were evaluated using model protein foulants like bovine serum albumin and lysozyme. Antibacterial properties of the modified membranes were investigated using E. coli as model biofoulant. Overall, the effect of second interfacial polymerization without affecting the selectivity layer of nanofiltration membrane for their potential large-scale application was investigated in detail.


2019 ◽  
Vol 7 (42) ◽  
pp. 24205-24210 ◽  
Author(s):  
Chuanyao Liu ◽  
Yunzhe Jiang ◽  
Anjaiah Nalaparaju ◽  
Jianwen Jiang ◽  
Aisheng Huang

A novel covalent organic framework (COF) IISERP-COOH-COF1 membrane with both high water permeance and high ions rejection was developed for desalination through post-modification, which shows superior ions rejection based on size exclusion.


2020 ◽  
Vol 56 (95) ◽  
pp. 15068-15071
Author(s):  
Fangfang Dai ◽  
Risheng Yu ◽  
Ruobing Yi ◽  
Jian Lan ◽  
Rujie Yang ◽  
...  

A simple way to fabricate pure rGO membranes shows ultrahigh water permeance and excellent multivalent metal ion rejection, as well as long-term stability.


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