The Effect of Amorphous Rice Husk Silica to the Polysulfone Membrane Separation Process

2013 ◽  
Vol 701 ◽  
pp. 319-322 ◽  
Author(s):  
Zawati Harun ◽  
Mohd Riduan Jamalludin ◽  
Muhamad Zaini Yunos ◽  
Muhamad Fikri Shohur ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Rice Husk ◽  
Phase Inversion ◽  
Membrane Separation ◽  
Separation Process ◽  
Inversion Method ◽  
Distilled Water ◽  
Polysulfone Membrane ◽  
Rice Husk Silica ◽  
Phase Inversion Method ◽  
Permeation Test

This study investigates the effect of additive rice husk silica and Polyethylene glycol (PEG) on the performance of polysulfone (PSf) membrane. The membrane was prepared by phase inversion method using PSf, N-methyl-2-pyrrolidone (NMP) and rice husk silica was added as an additive. The performance of the membrane was analyzed by using distilled water for permeation test and humic acid for the rejection test. The result showed that the hydrophilic of PSf/PEG membrane has significantly improved the permeation and rejection performance with addition of rice husk silica. The results showed that with addition of 3% rice husk silica give the highest rejection flux at 196.63 L/m2hr with the rejection value 98%.

The Effect of Crystalline Rice Husk Silica on Polysulfone Membrane for Wastewater Treatment

2013 ◽  
Vol 328 ◽  
pp. 798-801 ◽  
Author(s):  
Zawati Harun ◽  
Muhamad Fikri Shohur ◽  
Muhamad Zaini Yunos ◽  
Mohd Riduan Jamalludin ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Rice Husk ◽  
Pure Water ◽  
Water Flux ◽  
Inversion Method ◽  
Distilled Water ◽  
Polysulfone Membrane ◽  
Rice Husk Silica ◽  
Ideal Composition ◽  
Uf Membranes ◽  
Phase Inversion Method

This study investigates the effect of additive rice husk silica and Polyethylene glycol(PEG) at different concentration on of Polysulfone (Psf) ultrafiltration (UF) membranes. The polymer membranes were prepared by a phase inversion method using Polysulfone (PSf) , N-methyl-2-pyrrolidone (NMP) as a solvent and distilled water as non-solvent. The performances of the membranes were measured in term of pure water flux by using distilled water and solute rejection at different wastewater concentration at 50%, 75% and 87.5%. The results demonstrated that the addition 2% and 3% rice husk silica give the good rejection for membranes but the best rejection was at membranes contains 3% rice husk silica where successfully do rejection of 80.5%. As a conclusion,the range between 2%-3% of rice husk silica gives the ideal composition based on the result of flux permeation and rejection.

scholarly journals Fabrication and Characterization of GO-Fe3O4/PSF Membrane with Phase Inversion Method

2021 ◽  
Vol 6 (2) ◽  
pp. 55-60
Author(s):  
Vivia Maulida Alfianti ◽  
◽  
Munasir Munasir ◽  
Keyword(s):  
Phase Inversion ◽  
Average Pore Size ◽  
Membrane Surface ◽  
Xrd Analysis ◽  
Solid Matrix ◽  
Coagulation Bath ◽  
Inversion Method ◽  
Average Pore ◽  
Polysulfone Membrane ◽  
Phase Inversion Method

Polysulfones are hydrophobic which can reduce membrane permeability. Permeability can be increased through the application of hydrophilic materials such as GO-Fe3O4 to the polysulfone membrane so that the membrane is hydrophilic. The riset purpose to determine the effect of the percentage weight of different material compositions on the hydrophilicity properties of the polysulfone membrane. Membrane fabrication is carried out using the phase inversion method where the polymer solution is molded in a place and immersed in a coagulation bath containing non-solvent. This solvent exchange causes the polymer to form a solid matrix and become a membrane. The results showed that GO particles were successfully doped with Fe3O4 material shown by XRD analysis at a peak of 35.61˚ with a magnetite phase, while FTIR analysis showed that there was an absorption band characteristic of Fe-O streching vibrations. The results of the contact angle test on the GO-Fe3O4/PSF membrane 0.75 wt per cent were around 73.17˚ which showed the smallest hydrophobic value and the membrane surface morphology had an average pore size of 333.61 nm so that the addition of GO-Fe3O4 composites could increase membrane hydrophilicity.

scholarly journals The Influence of ZnO/TiO2 Nanohybrid Blending on the Ultrafiltration Polysulfone Membranes

2018 ◽  
Vol 55 (1) ◽  
pp. 54-62 ◽  
Author(s):  
Stefan Catalin Pintilie ◽  
Laurentia Geanina Tiron ◽  
Andreea Liliana Lazar ◽  
Maria Vlad ◽  
Iulian Gabriel Birsan ◽  
...  
Keyword(s):  
Contact Angle ◽  
Phase Inversion ◽  
Active Surface ◽  
Inorganic Nanoparticles ◽  
Inversion Method ◽  
Distilled Water ◽  
Percentage Increase ◽  
Antifouling Ability ◽  
Red Dye ◽  
Phase Inversion Method

In recent years, the inorganic nanoparticles played an important role in the membrane technology due to their special properties, most notably being the hydrophilicity/hydrophobicity modification of the active surface of the membrane. In this paper, the polymer used for membrane manufacturing was polysulfone (PSf) via phase-inversion method. The composite PSf membranes were prepared by blending zinc oxide (ZnO), titanium dioxide (TiO2) nanoparticles and ZnO/TiO2 nanohybrid with three concentrations. Retention of Congo red dye, distilled water permeability, relative flux and relative flux reduction were tested in order to study the effects of the nanoparticles in the membrane matrix. SEM, EDX, porosity, roughness, contact angle, tensile strength and elongation measurement were conducted in this article, also. Compared with control PSf, ZnO/PSf and TiO2/PSf membranes, the experimental results indicated that the ZnO/TiO2/PSf nanohybrid membrane presents the best overall properties, including permeability, retention, and antifouling ability. ZnO/TiO2/PSf membrane exhibits a percentage increase in permeability of 254% and retention of 64.58 % relative to that of the control PSf membrane.

scholarly journals Fabrication and Characterization of Polysulfone Membrane Based On GO-SiO2 Composite using Phase Inversion Method

2021 ◽  
Vol 328 ◽  
pp. 01010
Author(s):  
Wineke Angesti ◽  
M. Munasir
Keyword(s):  
Contact Angle ◽  
Pore Size ◽  
Phase Inversion ◽  
Wave Number ◽  
Inversion Method ◽  
Application Process ◽  
Polysulfone Membrane ◽  
Hydrolysis Method ◽  
Membrane Performance ◽  
Phase Inversion Method

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.

Performance of Polyphenylsulfone-based Solvent Resistant Nanofiltration Membranes in Removing Dyes from Methanol Solution

2014 ◽  
Vol 70 (2) ◽  
Author(s):  
N. A. A. Sani ◽  
W. J. Lau ◽  
A. F. Ismail
Keyword(s):  
Phase Inversion ◽  
Membrane Separation ◽  
Polymer Concentration ◽  
Inversion Method ◽  
Separation Performance ◽  
Permeate Flux ◽  
Filtration Time ◽  
Pure Methanol ◽  
Dye Rejection ◽  
Phase Inversion Method

In this study, polyphenylsulfone (PPSU) which is a third member of the polysulfone (PSF) family, with even better properties than PSF and polyethersulfone (PES) was used to prepare flat sheet solvent resistant nanofiltration (SRNF) membranes. The SRNF membranes were prepared from different PPSU concentrations (i.e. 17, 21 and 25 wt%) via phase inversion method. The performance of membranes was then evaluated by measuring the methanol flux and rejection against dyes of different molecular weight (MW) dissolved in methanol. The study revealed that the membrane with the lowest polymer concentration produced the highest pure methanol flux and required the longest time to achieve steady-state owing to its porous structure. Results also showed that the flux of the membranes tended to decrease with filtration time due to the membrane compaction. With respect to the membrane separation performance, it was found that the membrane dye rejection increased while permeate flux decreased with increasing the MW of dye components from 269 to 1470 g/mol, irrespective of the polymer concentration. Furthermore, the membrane MWCO was found to change with polymer concentration in which an increase in polymer concentration led to a lower membrane MWCO.

scholarly journals Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2349
Author(s):  
Cristina Bărdacă Urducea ◽  
Aurelia Cristina Nechifor ◽  
Ioana Alina Dimulescu ◽  
Ovidiu Oprea ◽  
Gheorghe Nechifor ◽  
...  
Keyword(s):  
Polymer Solution ◽  
Phase Inversion ◽  
Membrane Preparation ◽  
Electrochemical Technique ◽  
Coagulation Bath ◽  
Inversion Method ◽  
Polysulfone Membrane ◽  
Water Permeation ◽  
Phase Inversion Technique ◽  
Phase Inversion Method

The preparation of membranes from polymer solutions by the phase inversion method, the immersion—precipitation technique has proved since the beginning of obtaining technological membranes the most versatile and simple possibility to create polymeric membrane nanostructures. Classically, the phase inversion technique involves four essential steps: Preparation of a polymer solution in the desired solvent, the formation of the polymer solution film on a flat support, the immersion of the film in a coagulation bath containing polymer solvents, and membrane conditioning. All phase inversion stages are important for the prepared membrane’s nanostructure and have been studied in detail for more than six decades. In this paper, we explored, through an electrochemical technique, the influence of the contact time with the polymer film’s environment until the introduction into the coagulation bath. The system chosen for membrane preparation is polysulfone-dimethylformamide-aqueous ethanol solution (PSf-DMF-EW). The obtained nanostructured membranes were characterized morphologically and structurally by scanning electron microscopy (SEM) and thermal analysis (TA), and in terms of process performance through water permeation and bovine serum albumin retention (BSA). The membrane characteristics were correlated with the polymeric film exposure time to the environment until the contact with the coagulation bath, following the diagram of the electrochemical parameters provided by the electrochemical technique.

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

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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