A nonionic polymer-brush-grafted PVDF membrane to analyse fouling during the filtration of oil/water emulsions

2021 ◽  
pp. 119644
Author(s):  
Yang He ◽  
Kexin Xu ◽  
Xia Feng ◽  
Li Chen ◽  
Zhongyi Jiang
Keyword(s):  
Polymer Brush ◽  
Pvdf Membrane ◽  
Nonionic Polymer ◽  
Oil Water

Adsorption of Anionic Surfactants in a Nonionic Polymer Brush: Experiments, Comparison with Mean-Field Theory, and Implications for Brush−Particle Interaction

Langmuir ◽  
2009 ◽  
Vol 25 (16) ◽  
pp. 9252-9261 ◽  
Author(s):  
Wiebe M. de Vos ◽  
P. Maarten Biesheuvel ◽  
Arie de Keizer ◽  
J. Mieke Kleijn ◽  
Martien A. Cohen Stuart
Keyword(s):  
Field Theory ◽  
Anionic Surfactants ◽  
Mean Field Theory ◽  
Particle Interaction ◽  
Polymer Brush ◽  
Mean Field ◽  
Nonionic Polymer

Two-dimensional MOF-based Liquid Marbles: Surface Energy Calculations and Efficient Oil-Water Separation Using a ZIF-9-III@PVDF Membrane

2021 ◽  
Author(s):  
Jayaramulu Kolleboyina ◽  
HANEESH SAINI ◽  
Parashuram Kallem ◽  
Eva Otyepková ◽  
Florian Geyer ◽  
...  
Keyword(s):  
Surface Energy ◽  
Two Dimensional ◽  
Water Separation ◽  
Pvdf Membrane ◽  
Energy Calculations ◽  
Liquid Marbles ◽  
Droplet Form ◽  
Oil Water Separation ◽  
Oil Water ◽  
Aqueous Droplet

Superhydrophobic MOF-nanosheets assembled on the outside of an aqueous droplet form ‘liquid marbles’. A facile mechanochemical-based synthesis followed by ultrasonication was used to prepare two-dimensional superhydrophobic-oleophilic MOF nanosheets of a...

A facile surface modification of a PVDF membrane via CaCO3 mineralization for efficient oil/water emulsion separation

2020 ◽  
Vol 44 (48) ◽  
pp. 20999-21006
Author(s):  
Junda Wu ◽  
Atian Xie ◽  
Jin Yang ◽  
Jiangdong Dai ◽  
Chunxiang Li ◽  
...  
Keyword(s):  
Self Assembly ◽  
Layer By Layer ◽  
Assembly Process ◽  
Water Separation ◽  
Water Emulsion ◽  
Pvdf Membrane ◽  
Inorganic Particles ◽  
Emulsion Separation ◽  
Oil Water Separation ◽  
Oil Water

A facile modification of a PVDF membrane using CaCO3 inorganic particles via a layer-by-layer self-assembly process for efficient oil/water separation.

scholarly journals Excellent hydrophilic and anti-bacterial fouling PVDF membrane based on ag nanoparticle self-assembled PCBMA polymer brush

2017 ◽  
Vol 35 (7) ◽  
pp. 809-822 ◽  
Author(s):  
Jian-hua Li ◽  
De-bin Zhang ◽  
Xing-xing Ni ◽  
Hui Zheng ◽  
Qi-qing Zhang
Keyword(s):  
Polymer Brush ◽  
Ag Nanoparticle ◽  
Pvdf Membrane ◽  
Self Assembled ◽  
Bacterial Fouling

Separation of oil/water emulsion using nano-particle (TiO2/Al2O3) modified PVDF ultrafiltration membranes and evaluation of fouling mechanism

2013 ◽  
Vol 67 (3) ◽  
pp. 477-484 ◽  
Author(s):  
X. S. Yi ◽  
S. L. Yu ◽  
W. X. Shi ◽  
S. Wang ◽  
L. M. Jin ◽  
...  
Keyword(s):  
Polyvinylidene Fluoride ◽  
Transmembrane Pressure ◽  
Cake Filtration ◽  
Cross Sectional ◽  
Water Emulsion ◽  
Pvdf Membrane ◽  
Pore Blocking ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water

In the present study, nano-sized TiO2/Al2O3 modified polyvinylidene fluoride (PVDF) membranes (MM) were fabricated and then utilized for oil/water emulsion separation. The results showed that, compared with PVDF membrane (OM), the contact angle of MM decreased and hydrophilicity increased. The ultrafiltration (UF) of oil in water emulsions with transmembrane pressure (TMP) increasing results in a sharp fall in relative flux with time. The cake filtration models did not always predict the performance over the complete range of filtration times very well. In the initial 30 min, all the four cake models can simulate this UF process to a certain extent, and the suitability was: cake filtration > intermediate pore blocking > standard pore blocking > complete pore blocking models. However, they were no longer adapted well with UF time extent to 60 min, but only cake filtration (R2 = 0.9535) maintained a high adaptability. Surface and cross-sectional morphology of the membrane was investigated by SEM to make an advanced certificate of this UF mechanism.

Hydrophilic modification of PVDF membrane with solution bulk polymerization graft and separation performance of oil-water

2018 ◽  
Vol 126 ◽  
pp. 48-59 ◽  
Author(s):  
Xiaojiao Yu ◽  
Wenqin Dai ◽  
Yingjuan Zhao ◽  
Liuyang Tang ◽  
Yuchen Wei ◽  
...  
Keyword(s):  
Bulk Polymerization ◽  
Separation Performance ◽  
Pvdf Membrane ◽  
Hydrophilic Modification ◽  
Oil Water
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