Search: L773:0376 7388 OR L773:1873 3123
> (2020-2024) >
Gamma-irradiated ja...
Gamma-irradiated janus electrospun nanofiber membranes for desalination and nuclear wastewater treatment
-
- Essalhi, Mohamed (author)
- Umeå universitet,Kemiska institutionen,African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune, 70000, Morocco
-
- Afsar, Noor Ul (author)
- Umeå universitet,Kemiska institutionen
-
- Bouyer, Denis (author)
- Institut Européen des Membranes, IEM, UMR 5635, ENSCM, CNRS, Univ Montpellier, Montpellier, France
-
show more...
-
- Sundman, Ola (author)
- Umeå universitet,Kemiska institutionen
-
- Holmboe, Michael (author)
- Umeå universitet,Kemiska institutionen
-
- Khayet, Mohamed (author)
- Department of Structure of Matter, Thermal Physics and Electronics, Faculty of Physics, University Complutense of Madrid, Avda. Complutense s/n, 28040, Madrid, Spain
-
- Jonsson, Mats (author)
- Department of Chemistry, KTH Royal Institute of Technology, SE - 100 44, Stockholm, Sweden
-
- Tavajohi, Naser (author)
- Umeå universitet,Kemiska institutionen
-
show less...
-
(creator_code:org_t)
- Elsevier, 2024
- 2024
- English.
-
In: Journal of Membrane Science. - : Elsevier. - 0376-7388 .- 1873-3123. ; 700
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://umu.diva-por... (primary) (Raw object)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- This study presents the fabrication of double-layer electrospun nanofibrous membranes (DL-ENMs) using polyvinylidene fluoride (PVDF) and polyether sulfone (PES) based polymers with different degrees of hydrophilicity (PES, sulfonated PES, and PES with hydroxyl terminals). A comparative analysis was carried out with single-layer electrospun nanofiber membranes (SL-ENM) with a total thickness of about 375 μm. Using feed solutions, including sodium chloride, sodium nitrate, and simulated nuclear wastewater (SNWW), the performance of DL-ENMs was evaluated for desalination and radionuclide decontamination by direct contact membrane distillation (DCMD) and air gap membrane distillation (AGMD) techniques. The results showed that DL-ENMs, especially those incorporating a sulfonated PES-based hydrophilic layer, exhibited superior permeate fluxes, reaching values of 72.72 kg/m2h and 73.27 kg/m2h in the DCMD using aqueous feed solutions of NaCl and NaNO3, respectively, and 70.80 kg/m2h and 41.96 kg/m2h using aqueous feed solutions of SNWW in DCMD and AGMD, respectively. Both SL-ENMs and DL-ENMs exhibited high rejection efficiencies and decontamination factors for the feed solutions (>99.9%). In addition, the prepared ENMs were exposed to gamma radiation to evaluate their applicability in real-life applications. The result of irradiation revealed the negative impact of gamma radiation on the fluorine content of PVDF which could be a critical point in using PVDF as a hydrophobic material for decontaminating nuclear wastewater by membrane distillation.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Double-layer electrospun nanofibrous membranes
- Hydrophobic/hydrophilic
- Desalination
- Membrane distillation
- Simulated nuclear wastewater treatment
- Nuclides decontamination
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database