TIPS behavior for IPP/nano-SiO2 blend membrane formation and its contribution to membrane morphology and performance

2019 ◽  
Vol 27 (2) ◽  
pp. 467-475 ◽  
Author(s):  
Zhensheng Yang ◽  
Zheng Sun ◽  
Dongsheng Cui ◽  
Pingli Li ◽  
Zhiying Wang
Keyword(s):  
Membrane Formation ◽  
Blend Membrane ◽  
Nano Sio2 ◽  
Membrane Morphology ◽  
And Performance

scholarly journals Performance and Characterization for Blend Membrane of PES with Manganese(III) Acetylacetonate as Metalorganic Nanoparticles

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
H. Abdallah ◽  
M. S. Shalaby ◽  
A. M. H. Shaban
Keyword(s):  
Membrane Surface ◽  
Lower Surface ◽  
Permeate Flux ◽  
Asymmetric Membrane ◽  
Sem Images ◽  
Blend Membrane ◽  
Membrane Morphology ◽  
Evaluation Of Performance ◽  
Angle Measurements ◽  
And Performance

This study describes the preparation, characterization, and evaluation of performance of blend Polyethersulfone (PES) with manganese(III) acetylacetonate Mn(acac)3to produce reverse osmosis blend membrane. The manganese(III) acetylacetonate nanoparticles were prepared by a simple and environmentally benign route based on hydrolysis of KMnO4followed by reaction with acetylacetone in rapid stirring rate. The prepared nanoparticle powder was dissolved in polymer solution mixture to produce RO PES/Mn(acac)3blend membrane, without any treatment of Polyethersulfone membrane surface. The membrane morphology, mechanical properties, and performance were presented. The scanning electron microscopy (SEM) images have displayed a typical asymmetric membrane structure with a dense top layer due to the migration of Mn(acac)3nanoparticles to membrane surface during the phase inversion process. Contact angle measurements have indicated that the hydrophilicity of the membrane was improved by adding Mn(acac)3. AFM images have proved excellent pores size distribution of blend membrane and lower surface roughness compared with bare PES. The desalination test was applied to blend membrane, where the blend membrane provided good performance; particularly, permeate flux was 24.2 Kg/m2·h and salt rejection was 99.5%.

scholarly journals Influence of Preparation Temperature on the Properties and Performance of Composite PVDF-TiO2 Membranes

Membranes ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 876
Author(s):  
Duc-Trung Tran ◽  
Jean-Pierre Méricq ◽  
Julie Mendret ◽  
Stephan Brosillon ◽  
Catherine Faur
Keyword(s):  
Phase Separation ◽  
Membrane Properties ◽  
High Porosity ◽  
Permeate Flux ◽  
Preparation Temperature ◽  
Membrane Formation ◽  
Compression Behavior ◽  
Membrane Morphology ◽  
Ternary Phase Diagrams ◽  
And Performance

Composite PVDF-TiO2 membranes are studied extensively in literature as effective anti-fouling membranes with photocatalytic properties. Yet, a full understanding of how preparation parameters affect the final membrane structure, properties and performance has not been realized. In this study, PVDF-TiO2 membranes (20 wt% TiO2/PVDF) were fabricated via the non-solvent-induced phase separation (NIPS) method with an emphasis on the preparation temperature. Then, a systematic approach was employed to study the evolution of the membrane formation process and membrane properties when the preparation temperature changed, as well as to establish a link between them. Typical asymmetric membranes with a high porosity were obtained, along with a vast improvement in the permeate flux compared to the neat PVDF membranes, but a reduction in mechanical strength was also observed. Interestingly, upon the increase in preparation temperature, a significant transition in membrane morphology was observed, notably the gradual diminution of the finger-like macrovoids. Other membrane properties such as permeability, porosity, thermal and mechanical properties, and compression behavior were also influenced accordingly. Together, the establishment of the ternary phase diagrams, the study of solvent–nonsolvent exchange rate, and the direct microscopic observation of membrane formation during phase separation, helped explain such evolution in membrane properties.

scholarly journals An Experimental Investigation: Effect of Phase Inversion Methods on Membrane Structure and Its Performance on PEG Filtration

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Masooma Irfan ◽  
Hatijah Basri ◽  
M. Irfan
Keyword(s):  
Phase Separation ◽  
Phase Inversion ◽  
Multiwall Carbon Nanotubes ◽  
Polymeric Membranes ◽  
Inversion Method ◽  
Inversion Process ◽  
Membrane Morphology ◽  
And Performance ◽  
Phase Inversion Method ◽  
Multiwall Carbon

In this work, the effect of different phase inversion process on membrane morphology and performance was studied. Polyethersulfone (PES) based polymeric membranes was fabricated containing polyvinylpyrrolidone (PVP) and carboxylic functionalized multiwall carbon nanotubes (MWCNT) as additives and polyethylene glycol (PEG) having a molecular weight 1K, 10K and 35K (Dalton) were used as a model solution for observing the rejection/filteration ability of fabricated membranes. Non-solvent induce phase separation (NIP) and dry-wet phase separation (DWP) method was adopted for membrane synthesis. The FTIR spectra showed that PVP/MWCNT was effectively blended with PES polymer and different phase inversion method led to different internal morphologies of membranes as confirmed by FESEM images. The PEG rejection results suggested that membranes formed by DWP method had approximately double rejection ability than membranes formed by NIP process.

scholarly journals Effect of chitosan-zinc oxide coated in PVDF membrane; morphology and performance testing

2020 ◽  
Vol 835 ◽  
pp. 012056
Author(s):  
A Febriasari ◽  
D Siswanta ◽  
N Riyanto ◽  
N Hidayat Aprilita ◽  
F Silvianti
Keyword(s):  
Zinc Oxide ◽  
Performance Testing ◽  
Pvdf Membrane ◽  
Membrane Morphology ◽  
And Performance

Polyacrylonitrile/starch semi-biodegradable blend membrane: preparation, morphology and performance

2014 ◽  
Vol 57 (2) ◽  
pp. 495-504 ◽  
Author(s):  
Khatereh Nabavi ◽  
Majid Mahdavian ◽  
Vahideh Ghaffarian ◽  
Emran Zabihi
Keyword(s):  
Membrane Preparation ◽  
Blend Membrane ◽  
And Performance

Polyethersulfone/Polyvinyl Acetate Blend Membrane for CO2/CH4 Gas Separation

2015 ◽  
Vol 754-755 ◽  
pp. 44-48 ◽  
Author(s):  
Siti Hajaratul Akma Abdul Hadi ◽  
Hilmi Mukhtar ◽  
Hafiz Abdul Mannan ◽  
Thanabalan Murugesan
Keyword(s):  
Phase Inversion ◽  
Room Temperature ◽  
Polyvinyl Acetate ◽  
Constant Pressure ◽  
Inversion Method ◽  
Characteristic Peak ◽  
Blend Membrane ◽  
Membrane Morphology ◽  
Phase Inversion Method ◽  
Chemical Groups

The synthesis of polyethersulfone (PES)/polyvinyl acetate (PVAc) blend membrane was successfully developed by dry phase inversion method. The membrane morphology characterized using Field Emission Electron Microscope (FESEM) showed both polymers were homogeneously mixed and a dense structure was formed. A shift in characteristic peak for most chemical groups was observed in blend membrane as analyzed by Fourier Transform Infrared (FTIR) analysis which suggests the presence of molecular interaction between the blend polymers. The permeability of carbon dioxide (CO2) and methane (CH4) gases was recorded at a constant pressure of 10 bars and room temperature. The permeability across polymer blend membrane showed better performance as compared with native polymer membrane.

Comparison study of the effect of PVP and PANI nanofibers additives on membrane formation mechanism, structure and performance

2011 ◽  
Vol 385-386 ◽  
pp. 110-122 ◽  
Author(s):  
Song Zhao ◽  
Zhi Wang ◽  
Xin Wei ◽  
Xinxia Tian ◽  
Jixiao Wang ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Comparison Study ◽  
Membrane Formation ◽  
Pani Nanofibers ◽  
And Performance

scholarly journals Morphology and performance of polyvinyl chloride membrane modified with Pluronic F127

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 726
Author(s):  
Nasrul Arahman ◽  
Afrilia Fahrina ◽  
Mukramah Yusuf Wahab ◽  
Umi Fathanah
Keyword(s):  
Polymer Solution ◽  
Polyvinyl Chloride ◽  
Pure Water ◽  
Pluronic F127 ◽  
Pvc Membrane ◽  
Membrane Pore ◽  
Membrane Morphology ◽  
Morphological Modification ◽  
Dope Solution ◽  
And Performance

Background: Attempts to modify the morphology of membrane for application in industrial separation are being undertaken by many researchers. The present study discusses the morphological modification of polyvinyl chloride (PVC) membrane by combining the hydrophilic surfactant Pluronic F127 (PF127) in a polymer solution to improve the performance of the membrane.  Method: The membrane is formed using the non-solvent induced-phase separation (NIPS) method. PF127 is added to the membrane solution as a membrane modifying agent. The effects of the surfactant concentration in the dope solution on the permeability of pure water, solute rejection, hydrophilic characteristics, and membrane morphology are investigated. Results: Higher concentrations of PF127 had a significant effect on the permeability of pure water. The highest membrane permeation was 45.65 l/m2.hr.atm with the addition of 7% PF127 additive. Conclusion: PF127 is successfully proposed as a membrane pore-forming agent in this work; the blending of this additive in appropriate amounts in the polymer solution is adequate to improve the performance of the PVC membrane.

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