Characteristics and Performances of Blended Polyethersulfone and Carbon‐Based Nanomaterial Membranes: Effect of Nanomaterial Types and Air Exposure

Polyethersulfone (PES) is a widely used polymeric material for ultrafiltration or nanofiltration membranes. To enhance membrane permeability, rejection, and antifouling performance, the effect of four different types of carbon‐based nanomaterials and air exposures during PES/carbon‐based nanomateria...

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Bibliographic Details
Published in:Chemical engineering & technology 2020-08, Vol.43 (8), p.1630-1637
Main Authors: Suhartono, Jono, Pertiwi, Dyah Setyo, Noersalim, Carlina, Yulianingsih, Devi, Sofianti, Falashiva, Saptoro, Agus, Chafidz, Achmad
Format: Article
Language:English
Subjects:
Carbon
Carbon nanotubes
Graphene
Graphene nanoplatelets
Hydrophobicity
Impregnated polyethersulfone membrane
Membranes
Morphology
Nanofiltration
Nanomaterials
Permeability
Polyethersulfone
Polyethersulfones
Porosity
Ultrafiltration
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Summary:Polyethersulfone (PES) is a widely used polymeric material for ultrafiltration or nanofiltration membranes. To enhance membrane permeability, rejection, and antifouling performance, the effect of four different types of carbon‐based nanomaterials and air exposures during PES/carbon‐based nanomaterial membrane fabrication was evaluated. The carbon‐based nanomaterials were pristine carbon nanotubes, oxidized CNTs (CNTs‐O), pristine graphene nanoplatelets (GNPs‐P), and oxidized graphene nanoplatelets (GNPs‐O). The characteristics and performances of pure and blended membranes were investigated based on their permeability, porosity, morphology, and hydrophobicity. Longer air contact time during membrane preparation resulted in lower membrane permeability, hydrophobicity, and porosity. All fabricated membranes tended to have channelled sponge‐like structure, and highest permeability was attributed to the PES/GNPs‐O membrane. Membrane properties and characteristics obtained through phase inversion depend on numerous parameters and the techniques applied during preparation and processes. Impregnation of different carbon‐based nanomaterials in a polymeric membrane and air exposure treatment resulted in different membrane features which were compared to the pristine polymeric membrane.
ISSN:0930-7516
1521-4125
DOI:10.1002/ceat.201900582