scholarly journals ZnO Nanocomposite Membranes for Desalination

Author(s):  
A. M. Vijesh ◽  
J. Liya ◽  
P. C. Shyma

Severe drinking water scarcity is a major problem around the world and pressure driven membrane processes are gaining importance in the field of water purification. This work mainly focuses on improving membrane performance in terms of hydrophilicity, solute rejection, etc. It emphasizes on the preparation of polysulfone (PSf) based blend membranes via phase inversion method. PSf membrane is modified by the addition of zinc oxide (ZnO) nanoparticle at various compositions and the resultant membrane performances were studied. The PSf-ZnO membranes were characterized by ATR-IR and SEM. These membranes showed much better salt rejection performance. 

2016 ◽  
Vol 361 (1) ◽  
pp. 11-19 ◽  
Author(s):  
Swapna V.P. ◽  
Saranya E.P. ◽  
Nithya A.B. ◽  
Sabu Thomas ◽  
Ranimol Stephen

2011 ◽  
Vol 356-360 ◽  
pp. 2338-2343 ◽  
Author(s):  
Han Min Wang ◽  
Xue Li Gao ◽  
Bao Wei Su ◽  
Cong Jie Gao

The polyethersulfone ultra-filtration membrane was prepared by phase inversion method using polyethersulfone(PES), polyethylene glycol 400(PEG400) and N,N- dimethylamide(DMAC) as materials, and was modified by adding a capsaicin monomer named MBHBA which possess antibacterial property. The effects of MBHBA content on the ultra-filtration membrane performance were discussed. The results showed that the addition of MBHBA monomer effectively increased the membrane flux. And the modified membrane had strong inhibitory activity against Escherichia coli.


2021 ◽  
Vol 328 ◽  
pp. 01010
Author(s):  
Wineke Angesti ◽  
M. Munasir

This research purpose to determine the material composition in the manufacture of polysulfone membranes by producing the best performance in the filtration application process. Polysulfone has good thermal and chemical stability properties that make it a candidate material in membrane manufacturing, but the hydrophobicity properties of polysulfone result in less than optimal membrane performance, so a blending process is needed to reduce hydrophobicity by maintaining the advantages of the membrane. The membrane was prepared using phase inversion with composite doping through the TEOS in situ hydrolysis method. The results of XRD identification showed that the diffraction pattern was successfully coated with silica with the amorphous phase, while the FTIR contained Si-O-Si bonds with a wave number of 1054 cm-1. The SEM surface morphology showed that the presence of silica and GO made the pore size larger with the pore size on the membrane 1,92 μm. The results of the contact angle test on the GO-SiO2/PSF variation of 0,8 obtained the lowest hydrophobicity value of 70,17°. The addition of composites will result in a larger pore size supported by the value of the contact angle, proving that the combination of the composite in polysulfone can increase the hydrophilicity of the membrane.


Author(s):  
Yuxin Pan ◽  
Kai Pei ◽  
Yucun Zhou ◽  
Tong Liu ◽  
Meilin Liu ◽  
...  

A straight, open and macro-porous Ni–BaZr0.1Ce0.7Y0.1Yb0.1O3 fuel electrode-supported protonic ceramic electrochemical cell has been fabricated by a modified phase-inversion method.


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