Vapor‐phase polymerization of high‐performance thin‐film composite membranes for nanofiltration

AIChE Journal ◽  
2021 ◽  
Author(s):  
Wanbin Li ◽  
Zhe Yang ◽  
Wulin Yang ◽  
Hao Guo ◽  
Chuyang Y. Tang
Keyword(s):  
Thin Film ◽  
Vapor Phase ◽  
High Performance ◽  
Composite Membranes ◽  
Film Composite ◽  
Thin Film Composite ◽  
Vapor Phase Polymerization

High-performance thin-film composite membranes with surface functionalization by organic phosphonic acids

2018 ◽  
Vol 563 ◽  
pp. 284-297 ◽  
Author(s):  
Liang Shen ◽  
Fangqian Wang ◽  
Lian Tian ◽  
Xuan Zhang ◽  
Chun Ding ◽  
...  
Keyword(s):  
Thin Film ◽  
Surface Functionalization ◽  
High Performance ◽  
Composite Membranes ◽  
Phosphonic Acids ◽  
Film Composite ◽  
Thin Film Composite

Development of novel fluorinated additives for high performance CO2 separation thin-film composite membranes

2016 ◽  
Vol 499 ◽  
pp. 191-200 ◽  
Author(s):  
Joel M.P. Scofield ◽  
Paul A. Gurr ◽  
Jinguk Kim ◽  
Qiang Fu ◽  
Sandra E. Kentish ◽  
...  
Keyword(s):  
Thin Film ◽  
High Performance ◽  
Composite Membranes ◽  
Co2 Separation ◽  
Film Composite ◽  
Thin Film Composite

scholarly journals Modification of Nanofiber Support Layer for Thin Film Composite forward Osmosis Membranes via Layer-by-Layer Polyelectrolyte Deposition

Membranes ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 70 ◽  
Author(s):  
Ralph Gonzales ◽  
Myoung Park ◽  
Leonard Tijing ◽  
Dong Han ◽  
Sherub Phuntsho ◽  
...  
Keyword(s):  
Thin Film ◽  
High Performance ◽  
Forward Osmosis ◽  
Composite Membranes ◽  
Structural Parameter ◽  
Layer By Layer ◽  
Film Composite ◽  
Thin Film Composite ◽  
Layer Deposition ◽  
Tfc Membrane

Electrospun nanofiber-supported thin film composite membranes are among the most promising membranes for seawater desalination via forward osmosis. In this study, a high-performance electrospun polyvinylidenefluoride (PVDF) nanofiber-supported thin film composite (TFC) membrane was successfully fabricated after molecular layer-by-layer polyelectrolyte deposition. Negatively-charged electrospun polyacrylic acid (PAA) nanofibers were deposited on electrospun PVDF nanofibers to form a support layer consisted of PVDF and PAA nanofibers. This resulted to a more hydrophilic support compared to the plain PVDF nanofiber support. The PVDF-PAA nanofiber support then underwent a layer-by-layer deposition of polyethylenimine (PEI) and PAA to form a polyelectrolyte layer on the nanofiber surface prior to interfacial polymerization, which forms the selective polyamide layer of TFC membranes. The resultant PVDF-LbL TFC membrane exhibited enhanced hydrophilicity and porosity, without sacrificing mechanical strength. As a result, it showed high pure water permeability and low structural parameter values of 4.12 L m−2 h−1 bar−1 and 221 µm, respectively, significantly better compared to commercial FO membrane. Layer-by-layer deposition of polyelectrolyte is therefore a useful and practical modification method for fabrication of high performance nanofiber-supported TFC membrane.

Sustainable Process for the Preparation of High-Performance Thin-Film Composite Membranes using Ionic Liquids as the Reaction Medium

ChemSusChem ◽  
2016 ◽  
Vol 9 (10) ◽  
pp. 1101-1111 ◽  
Author(s):  
Hanne Mariën ◽  
Lotte Bellings ◽  
Sanne Hermans ◽  
Ivo F. J. Vankelecom
Keyword(s):  
Thin Film ◽  
Ionic Liquids ◽  
High Performance ◽  
Reaction Medium ◽  
Composite Membranes ◽  
Film Composite ◽  
Thin Film Composite
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