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Graphene-Coated PVDF Membranes: Effects of Multi-Scale Rough Structure on Membrane Distillation Performance
Abstract
Graphene-coated membranes for membrane distillation have been fabricated by using a wet-filtration approach. Graphene nanoplatelets have been deposited onto PVDF membrane surfaces. Morphology and physicochemical properties have been explored to evaluate the changes in the surface topography and related effects on the membrane performance in water desalination. The membranes have been tested in membrane distillation plants by using mixtures of sodium chloride and humic acid. The multi-scale rough structure of the surface has been envisaged to amplify the wetting and fouling resistance of the graphene-coated membranes so that a better flux and full salt rejection have been achieved in comparison with pristine PVDF. Total salt rejection and an increase of 77% in flux have been observed for coated membrane with optimized graphene content when worked with NaCl 0.6 M (DCMD, ΔT ≈ 24 °C) over a test period of 6 h. The experimental findings suggest these novel graphene-coated membranes as promising materials to develop functional membranes for high-performing water desalination.
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Authors (4)
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Giuseppe Di Luca
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Annarosa Gugliuzza
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/membranes12050511
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Membranes
no. 12,
ISSN: 2077-0375 - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Gontarek-Castro E., Di Luca G., Lieder M., Gugliuzza A.: Graphene-Coated PVDF Membranes: Effects of Multi-Scale Rough Structure on Membrane Distillation Performance// Membranes -Vol. 12,iss. 5 (2022), s.511-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/membranes12050511
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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