Surface Engineering of Thin Film Composite Polyamide Membranes with Silver Nanoparticles through Layer-by-Layer Interfacial Polymerization for Antibacterial Properties

2017 ◽  
Vol 9 (46) ◽  
pp. 40987-40997 ◽  
Author(s):  
Zhongyun Liu ◽  
Longbin Qi ◽  
Xiaochan An ◽  
Caifeng Liu ◽  
Yunxia Hu
Keyword(s):  
Thin Film ◽  
Silver Nanoparticles ◽  
Surface Engineering ◽  
Interfacial Polymerization ◽  
Antibacterial Properties ◽  
Layer By Layer ◽  
Film Composite ◽  
Thin Film Composite ◽  
Polyamide Membranes

scholarly journals Zwitterion Co-Polymer PEI-SBMA Nanofiltration Membrane Modified by Fast Second Interfacial Polymerization

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 269 ◽  
Author(s):  
Yu-Hsuan Chiao ◽  
Tanmoy Patra ◽  
Micah Belle Marie Yap Ang ◽  
Shu-Ting Chen ◽  
Jorge Almodovar ◽  
...  
Keyword(s):  
Thin Film ◽  
Wastewater Treatment ◽  
Large Scale ◽  
Interfacial Polymerization ◽  
Antibacterial Properties ◽  
Operating Conditions ◽  
Nanofiltration Membrane ◽  
Nanofiltration Membranes ◽  
Film Composite ◽  
Thin Film Composite

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.

scholarly journals Effect of the Formation of Ultrathin Selective Layers on the Structure and Performance of Thin-Film Composite Chitosan/PAN Membranes for Pervaporation Dehydration

Membranes ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 153 ◽  
Author(s):  
Mariia Dmitrenko ◽  
Andrey Zolotarev ◽  
Tatiana Plisko ◽  
Katsiaryna Burts ◽  
Vladislav Liamin ◽  
...  
Keyword(s):  
Thin Film ◽  
Optimal Transport ◽  
Interfacial Polymerization ◽  
Contact Angles ◽  
Layer By Layer ◽  
Water Contact ◽  
Selective Layer ◽  
Film Composite ◽  
Thin Film Composite ◽  
And Performance

The aim of the study is to improve the performance of thin-film composite (TFC) membranes with a thin selective layer based on chitosan (CS) via different approaches by: (1) varying the concentration of the CS solution; (2) changing the porosity of substrates from polyacrylonitrile (PAN); (3) deposition of the additional ultrathin layers on the surface of the selective CS layer using interfacial polymerization and layer-by-layer assembly. The developed membranes were characterized by different methods of analyses (SEM and AFM, IR spectroscopy, measuring of water contact angles and porosity). The transport characteristics of the developed TFC membranes were studied in pervaporation separation of isopropanol/water mixtures. It was found that the application of the most porous PAN-4 substrate with combination of formation of an additional polyamide selective layer by interfacial polymerization on the surface of a dense selective CS layer with the subsequent layer-by-layer deposition of five bilayers of poly (sodium 4-styrenesulfonate)/CS polyelectrolyte pair led to the significant improvement of permeance and high selectivity for the entire concentration feed range. Thus, for TFC membrane on the PAN-4 substrate the optimal transport characteristics in pervaporation dehydration of isopropanol (12–90 wt.% water) were achieved: 0.22–1.30 kg/(m2h), 99.9 wt.% water in the permeate.

scholarly journals Thin film composite polyamide membranes: parametric study on the influence of synthesis conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (68) ◽  
pp. 54985-54997 ◽  
Author(s):  
B. Khorshidi ◽  
T. Thundat ◽  
B. A. Fleck ◽  
M. Sadrzadeh
Keyword(s):  
Thin Film ◽  
Strong Interaction ◽  
Parametric Study ◽  
Interfacial Polymerization ◽  
Polymerization Reaction ◽  
Film Composite ◽  
Synthesis Conditions ◽  
Thin Film Composite ◽  
Wide Range ◽  
Polyamide Membranes

Analysis of strong interaction between monomers concentrations in interfacial polymerization reaction provides valuable guidelines for making a wide range of salt rejecting membranes.

Improved pervaporation efficiency of thin-film composite polyamide membranes fabricated through acetone-assisted interfacial polymerization

2021 ◽  
Vol 165 ◽  
pp. 375-385
Author(s):  
Manuel Reyes De Guzman ◽  
Micah Belle Marie Yap Ang ◽  
Yu-Lin Yeh ◽  
Hong-Li Yang ◽  
Shu-Hsien Huang ◽  
...  
Keyword(s):  
Thin Film ◽  
Interfacial Polymerization ◽  
Film Composite ◽  
Thin Film Composite ◽  
Polyamide Membranes

Antibacterial Thin Film Composite Polyamide Membranes Prepared by Sequential Interfacial Polymerization

2020 ◽  
Vol 305 (7) ◽  
pp. 2000114 ◽  
Author(s):  
Xiaofei Zhai ◽  
Jianlong Ye ◽  
Yaoting He ◽  
Zulpiyam Ahmatjan ◽  
Yufeng Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Interfacial Polymerization ◽  
Film Composite ◽  
Thin Film Composite ◽  
Polyamide Membranes

Thin film composite reverse osmosis membranes prepared via layered interfacial polymerization

2017 ◽  
Vol 527 ◽  
pp. 121-128 ◽  
Author(s):  
Wansuk Choi ◽  
Sungkwon Jeon ◽  
Soon Jin Kwon ◽  
Hosik Park ◽  
You-In Park ◽  
...  
Keyword(s):  
Thin Film ◽  
Reverse Osmosis ◽  
Interfacial Polymerization ◽  
Film Composite ◽  
Thin Film Composite ◽  
Reverse Osmosis Membranes
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