Effect of Solvents in the Performance of Cellulose Acetate/Poly(1,4-butylene succinate) Membrane Prepared by Using Phase Inversion Method

The main objective of this work has been to study the performance of membranes developed for treating purified wastewater. Polymeric membranes have been developed from solutions containing cellulose acetate (AC) and polysulfone (PSF), using N,N-dimethylformamide (DMF) as solvent and polyethylene glycol (PEG) as additive. The phase inversion method was chosen as a technique for producing the membrane films. The incorporation of PEG allowed us to study the effect of the additive on the morphological structure, and to predict the performance of the membranes formed. Examining the flux, permeability and selectivity of the membranes allowed studying the efficiency and performance of each membrane. The application results achieved in wastewater treatment at Chenoua/TIPAZA station were very satisfactory and in accordance with the standards required by WHO. The optimal performance, in terms of permeability and selectivity, was obtained for the MC membrane with the composition: PSF/PEG/AC of 25/12/63.

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Cellulose acetate ( CA ) hybrid membrane prepared by phase inversion method combined with chemical reaction with enhanced permeability and good anti‐fouling property

Journal of Applied Polymer Science ◽

10.1002/app.49556 ◽

2020 ◽

Vol 137 (47) ◽

pp. 49556

Author(s):

Bushra Khan ◽

Wang Zhan ◽

Cheng Lina

Keyword(s):

Cellulose Acetate ◽

Chemical Reaction ◽

Phase Inversion ◽

Hybrid Membrane ◽

Inversion Method ◽

Phase Inversion Method

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Membrane Made of Cellulose Acetate with Polyacrylic Acid Reinforced with Carbon Nanotubes and Its Applicability for Chromium Removal

International Journal of Polymer Science ◽

10.1155/2015/320631 ◽

2015 ◽

Vol 2015 ◽

pp. 1-12 ◽

Cited By ~ 20

Author(s):

J. A. Sánchez-Márquez ◽

R. Fuentes-Ramírez ◽

I. Cano-Rodríguez ◽

Z. Gamiño-Arroyo ◽

E. Rubio-Rosas ◽

...

Keyword(s):

Carbon Nanotubes ◽

Cellulose Acetate ◽

Polyacrylic Acid ◽

Contact Time ◽

Phase Inversion ◽

Acid Sites ◽

Inversion Method ◽

Chromium Removal ◽

Initial Concentration ◽

Phase Inversion Method

Membranes made of carbon nanotubes and cellulose acetate with polyacrylic acid were designed in order to study their properties and their applicability for chromium removal. The membranes were prepared by phase inversion method using cellulose acetate and polyacrylic acid. Carbon nanotubes were added to the membrane during their process of synthesis in proportions of 1% by weight. The pores in the material are formed in layers, giving the effect of depth and forming a network. Both the carbon nanotubes and membranes were characterized by IR, Raman, and SEM spectroscopy. In addition, the concentration of acidic and basic sites and the surface charge in the materials were determined. The concentration of acid sites for oxidized nanotubes was 4.0 meq/g. The removal of Cr(VI) was studied as a function of contact time and of initial concentration of Cr(VI). The removal of Cr(VI) (~90%) mainly occurs in a contact time from 32 to 64 h when the initial concentration of Cr(VI) is 1 mg/L.

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A straight, open and macro-porous fuel electrode-supported protonic ceramic electrochemical cell

Journal of Materials Chemistry A ◽

10.1039/d1ta00591j ◽

2021 ◽

Author(s):

Yuxin Pan ◽

Kai Pei ◽

Yucun Zhou ◽

Tong Liu ◽

Meilin Liu ◽

...

Keyword(s):

Phase Inversion ◽

Electrochemical Cell ◽

Inversion Method ◽

Phase Inversion Method

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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