High-performance porous graphene oxide hollow fiber membranes with tailored pore sizes for water purification

2021 ◽  
pp. 120216
Author(s):  
Tongrong Wu ◽  
Farhad Moghadam ◽  
Kang Li
Keyword(s):  
Graphene Oxide ◽  
Water Purification ◽  
Hollow Fiber ◽  
High Performance ◽  
Hollow Fiber Membranes ◽  
Porous Graphene ◽  
Pore Sizes ◽  
Fiber Membranes

Ultrastable sandwich graphene oxide hollow fiber membranes with confined interlayer spacing

2019 ◽  
Vol 7 (21) ◽  
pp. 13007-13011 ◽  
Author(s):  
Wufeng Wu ◽  
Jingyi Su ◽  
Miaomiao Jia ◽  
Weiming Zhong ◽  
Zhanjun Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Water Purification ◽  
Hollow Fiber ◽  
Interlayer Spacing ◽  
Hollow Fiber Membranes ◽  
Fiber Membranes

Non-swelling sandwich graphene oxide hollow fiber membranes with a confined interlayer spacing of 0.86 nm and ultrahigh stability in water purification were developed for sharp ion sieving.

Development of a Polymeric Carbon Nanocomposite Hollow-Fiber Membrane for Wastewater Treatment

2021 ◽  
Vol 21 (7) ◽  
pp. 3711-3715
Author(s):  
Jeongdong Choi ◽  
Eun-Sik Kim
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Hollow Fiber ◽  
Hollow Fiber Membranes ◽  
Permeate Flux ◽  
Fiber Membranes ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Polymeric Carbon ◽  
Carbon Nanocomposite

This study investigated experimental parameters to fabricate polymeric carbon nanocomposite hollow-fiber membranes with graphene oxide and multi-walled carbon nanotubes. This case was different from that of flat-sheet type membranes in that the characteristics of the hollow-fiber type membranes were affected by the structure of the spinneret, the flow rate of the injected polymer and draw solution, and the mixing ratio. The membranes were characterized in terms of mechanical strength, porosity, hydrophilicity, and permeate flux using different solutions. The results reveal a mechanical strength of the carbon nanocomposite hollow-fiber membranes that is about 47.8% higher than that of hollow-fiber membranes without carbon nanomaterials. The porosity and surface hydrophilicity changed to produce more applicable membranes for water and wastewater treatment. As for the permeate flux, the nanocomposite membrane with graphene oxide showed a higher flux compared to the multi-walled carbon nanotubes membrane, which could be influenced by structural effects of the carbon materials.

Performance and antifouling enhancement of polyethersulfone hollow fiber membranes incorporated with highly hydrophilic hydroxyapatite nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (50) ◽  
pp. 44480-44488 ◽  
Author(s):  
Esmaeil Salimi ◽  
Azadeh Ghaee ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Water Purification ◽  
Hollow Fiber ◽  
Membrane Fouling ◽  
Hollow Fiber Membranes ◽  
Hydroxyapatite Nanoparticles ◽  
Fiber Membranes

Membrane fouling is one of the main drawbacks in water purification applications. The present work indicated that the fabricated HAp/PES hollow fiber membranes presented better hydrophilicity, permeation and anti-fouling performance compared to PES membranes.

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