Fabrication of triple layer composite membrane and its application in membrane distillation (MD): Effect of hydrophobic-hydrophilic membrane structure on MD performance

2020 ◽  
Vol 234 ◽  
pp. 116087 ◽  
Author(s):  
Jun Li ◽  
Long-Fei Ren ◽  
Jiahui Shao ◽  
Yonghui Tu ◽  
Zhongbao Ma ◽  
...  
Keyword(s):  
Composite Membrane ◽  
Membrane Structure ◽  
Membrane Distillation ◽  
Triple Layer ◽  
Layer Composite ◽  
Hydrophilic Membrane

Robust superhydrophobic dual layer nanofibrous composite membranes with a hierarchically structured amorphous polypropylene skin for membrane distillation

2019 ◽  
Vol 7 (18) ◽  
pp. 11282-11297 ◽  
Author(s):  
Li Deng ◽  
Peiyun Li ◽  
Kang Liu ◽  
Xuefen Wang ◽  
Benjamin S. Hsiao
Keyword(s):  
Composite Membrane ◽  
Composite Membranes ◽  
Membrane Distillation ◽  
Layer Composite

A novel superhydrophobic aPP/PVDF dual layer composite membrane consisting of a hierarchically structured selective skin from aPP and a PVDF nanofibrous support for efficient desalination by DCMD.

Design of poly(ether block amide)/polyacrylonitrile composite membrane for carbon dioxide capture

2015 ◽  
Vol 08 (04) ◽  
pp. 1550045
Author(s):  
Lianjun Wang ◽  
Pengfei Ji ◽  
Yang Li ◽  
Mingming Di ◽  
Quan Lv ◽  
...  
Keyword(s):  
Composite Membrane ◽  
Great Influence ◽  
Separation Performance ◽  
Composite Polymer ◽  
Crosslinking Degree ◽  
Coating Solution ◽  
Membrane Performance ◽  
Triple Layer ◽  
Layer Composite ◽  
Amino Silicone

In this study, poly(ether block amide) was used as coating material to develop a novel composite polymer membrane for CO 2 capture. Polyacrylonitrile (PAN) ultrafiltration membrane was applied as substrate. Between them, a gutter layer prepared from cross-linked polydimethylsiloxane (PDMS) blending with amino silicone was introduced to improve separation performance of the composite membrane. The separation properties of resultant triple layer composite membrane was characterized using pure CO 2 and N 2 gases. It was found that the crosslinking degree of the gutter layer had great influence on membrane performance, which could be significantly improved with the help of amino-PDMS gutter layer compared with that of the membrane having Pebax coating directly onto PAN substrate. Using 2 wt.% Pebax coating solution and properly cross-linked gutter layer, the designed Pebax/amino-PDMS/PAN composite membrane showed CO 2 permeance of 147 GPU and CO 2/ N 2 selectivity of 62.

scholarly journals Triple-Layer Nanocomposite Membrane Prepared by Electrospinning Based on Modified PES with Carbon Nanotubes for Membrane Distillation Applications

Membranes ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 15 ◽  
Author(s):  
Mohamed R. Elmarghany ◽  
Ahmed H. El-Shazly ◽  
Saeid Rajabzadeh ◽  
Mohamed S. Salem ◽  
Mahmoud A. Shouman ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Vinylidene Fluoride ◽  
Bulk Material ◽  
Total Porosity ◽  
Surface Hydrophobicity ◽  
Membrane Distillation ◽  
Nanocomposite Membrane ◽  
High Porosity ◽  
Triple Layer ◽  
Layer Membrane

In this work, a novel triple-layer nanocomposite membrane prepared with polyethersulfone (PES)/carbon nanotubes (CNTs) as the primary bulk material and poly (vinylidene fluoride-co-hexafluoro propylene) (PcH)/CNTs as the outer and inner surfaces of the membrane by using electrospinning method is introduced. Modified PES with CNTs was chosen as the bulk material of the triple-layer membrane to obtain a high porosity membrane. Both the upper and lower surfaces of the triple-layer membrane were coated with PcH/CNTs using electrospinning to get a triple-layer membrane with high total porosity and noticeable surface hydrophobicity. Combining both characteristics, next to an acceptable bulk hydrophobicity, resulted in a compelling membrane for membrane distillation (MD) applications. The prepared membrane was utilized in a direct contact MD system, and its performance was evaluated in different salt solution concentrations, feed velocities and feed solution temperatures. The results of the prepared membrane in this study were compared to those reported in previously published papers. Based on the evaluated membrane performance, the triple-layer nanocomposite membrane can be considered as a potential alternative with reasonable cost, relative to other MD membranes.

Preparation of re-entrant and anti-fouling PVDF composite membrane with omniphobicity for membrane distillation

2020 ◽  
Vol 595 ◽  
pp. 117563 ◽  
Author(s):  
Wei Zhang ◽  
Yubing Lu ◽  
Jun Liu ◽  
Xipeng Li ◽  
Baoan Li ◽  
...  
Keyword(s):  
Composite Membrane ◽  
Membrane Distillation

Electrospun hierarchical fibrous composite membrane for pomegranate juice concentration using osmotic membrane distillation

2020 ◽  
Vol 8 (6) ◽  
pp. 104475
Author(s):  
Waheed Ur Rehman ◽  
Amir Khan ◽  
Nazish Mushtaq ◽  
Mohammad Younas ◽  
Xiaochan An ◽  
...  
Keyword(s):  
Composite Membrane ◽  
Fibrous Composite ◽  
Membrane Distillation ◽  
Pomegranate Juice
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