Tuning the antifouling property of PVDF ultrafiltration membrane with surface anchored polyelectrolyte complexes for sewage treatment

RSC Advances ◽  
2015 ◽  
Vol 5 (78) ◽  
pp. 63580-63587 ◽  
Author(s):  
Xinzhen Zhao ◽  
Aiwen Qin ◽  
Dapeng Liu ◽  
Chunju He
Keyword(s):  
Polyelectrolyte Complex ◽  
Sewage Treatment ◽  
Ultrafiltration Membrane ◽  
Polyelectrolyte Complexes ◽  
Pvdf Membrane ◽  
Antifouling Property

Surface anchored polyelectrolyte complex significantly improved the antifouling performance of PVDF membrane.

Improved antifouling property of PVDF ultrafiltration membrane with plasma treated PVDF powder

RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64526-64533 ◽  
Author(s):  
Xinzhen Zhao ◽  
Huixia Xuan ◽  
Aiwen Qin ◽  
Dapeng Liu ◽  
Chunju He
Keyword(s):  
Ultrafiltration Membrane ◽  
One Pot ◽  
Pvdf Membrane ◽  
Antifouling Property

The amphiphilic PVDF–PAA improved the antifouling property of a PVDF membrane by one-pot method.

Preparation and Characterization of Chitosan/Alginate Polyelectrolyte Complex Prepared by Using Calcium Tripolyphosphate Ionic Gelator

2016 ◽  
Vol 857 ◽  
pp. 447-451
Author(s):  
Nur Syairah Muhamad Rahim ◽  
Norlaily Ahmad ◽  
Dzaraini Kamarun
Keyword(s):  
Single Molecule ◽  
Polyelectrolyte Complex ◽  
Sodium Tripolyphosphate ◽  
Hybrid Compound ◽  
Polyelectrolyte Complexes ◽  
Sem Image ◽  
Degradation Temperature ◽  
Prepared Material ◽  
True Hybrid ◽  
The Individual

The formation of polyelectrolyte complexes (PECs) between chitosan and alginate has been widely investigated for many pharmaceutical and biomedical uses. Ionotropic gelation resulted from the crosslinking of polyelectrolytes (PEs) in the presence of ionic crosslinkers to form hydrogels. The most widely used ionic crosslinker for chitosan is sodium tripolyphosphate (NaTPP); and Ca2+ ions for alginates. The use of these cross-linkers to prepare PECs of chitosan and alginates resulted in hydrogels of similar moieties: chitosan-chitosan and alginate-alginate rather than the sought for hybrid chitosan-alginate PECs. Calcium tripolyphosphate (CaTPP) is a single molecule ionic gelator of chitosan and alginate that have the capability of producing the true hybrid compound of chitosan/alginate polyelectrolyte complex. This paper reported the synthesis of calcium tripolyphosphate and the preparation of a hybrid chitosan/alginate PECs using this newly identified ionic gelator. The newly-synthesized ionic gelator was characterized using ICP-OES; the PECs thereof prepared were characterized using TGA and SEM. The degradation temperature of the prepared PECs is higher than the degradation temperatures of the individual chitosan and alginates. SEM image of the prepared PECs showed rougher surfaces compared to the images of the individual chitosan and alginate compound. Both TGA and SEM revealed the possibility of the newly prepared material to be of the PECs sought for.

Preparation and characterization of modified PVDF membrane induced by argon plasma with enhanced antifouling property

2017 ◽  
Vol 64 ◽  
pp. 72-80 ◽  
Author(s):  
Azadeh Ghaee ◽  
Behrouz Sadatnia ◽  
Mohammad Khosravi ◽  
Zahra Mansourpour ◽  
Ali Ghadimi
Keyword(s):  
Argon Plasma ◽  
Pvdf Membrane ◽  
Antifouling Property

Preparation and characterization of nano-chitin whisker reinforced PVDF membrane with excellent antifouling property

2015 ◽  
Vol 480 ◽  
pp. 1-10 ◽  
Author(s):  
Aiwen Qin ◽  
Xiang Li ◽  
Xinzhen Zhao ◽  
Dapeng Liu ◽  
Chunju He
Keyword(s):  
Pvdf Membrane ◽  
Antifouling Property

Preparation and characterization of a PVDF/EG-POSS hybrid ultrafiltration membrane for anti-fouling improvement

RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 40753-40763 ◽  
Author(s):  
Junfen Sun ◽  
Lishun Wu ◽  
Fang Hu
Keyword(s):  
Ethylene Glycol ◽  
Ultrafiltration Membrane ◽  
Pvdf Membrane ◽  
Pure Pvdf

The octa vinyl silsesquioxane (OvPOSS) was used to synthesis POSS grafted ethylene glycol (EG) (EG-POSS). The hydrophilicity and anitifouling property of pure PVDF membrane was improved by incorporating EG-POSS in PVDF membrane.

Preparation and characterization of modified nano-porous PVDF membrane with high antifouling property using UV photo-grafting

2009 ◽  
Vol 255 (16) ◽  
pp. 7455-7461 ◽  
Author(s):  
A. Rahimpour ◽  
S.S. Madaeni ◽  
S. Zereshki ◽  
Y. Mansourpanah
Keyword(s):  
Pvdf Membrane ◽  
Antifouling Property
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