| Titre : |
Fabrication of poly(vinylidene fluoride)/graphite heterogeneous porous carbon nanofiber composite mat by electrospraying method for efficient oil-water separation |
| Type de document : |
texte imprimé |
| Année de publication : |
2024 |
| Article en page(s) : |
p. 693-702 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Electrofilature
Fibres de carbone
Graphite
Matériaux poreux
Nanofibres
Polyfluorure de vinylidène
Pulvérisation électrostatique
Séparation huile/eau
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The efficient separation of oil and water is significant in addressing oil–water pollution issues. In this study, we developed a poly(vinylidene fluoride)/graphite (PVDF/GE) multiscale heterogeneous porous carbon nanofiber composite mat (MHPCM) through a two-step electrospinning method for enhanced oil–water separation. The mat was prepared by incorporating PVDF nanospheres, GE flakes, and carbon nanofibers, taking advantage of their inherent oil-repellent and water-attracting properties. MHPCM-4 demonstrates superhydrophobicity (WCA≈154.1°) and superoleophilicity (OCA≈0°). The separation efficiency for 1–14 μm carbon tetrachloride-in-water emulsions exceeds 99.9%. After 25 cycles, MHPCM-4 maintains its oil flux at 92.25% of the initial value. Additionally, even after 25 cycles, MHPCM-4 retains a separation efficiency of 99.8% for immiscible oil-in-water mixtures and a separation efficiency of 99.7% for water-in-oil emulsions. Thus, this material has great potential for efficient oil–water separation in various circumstances. |
| Note de contenu : |
- EXPERIMENTAL SECTION : Materials - Preparation of MHPCM - Characterization
- RESULTS AND DISCUSSION : Microscopic morphology analysis - Wettability performance - Oil-water separation performance - Surface chemical properties - Surface roughness and antifouling performance - Mechanism analysis of oil/water separation |
| DOI : |
https://doi.org/10.1007/s11998-023-0000851-x |
| En ligne : |
https://drive.google.com/file/d/1vtal7HhHiBU534Cj73aWj3t6ySfoFsm8/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40786 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 2 (03/2024) . - p. 693-702
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Fabrication of poly(vinylidene fluoride)/graphite heterogeneous porous carbon nanofiber composite mat by electrospraying method for efficient oil-water separation in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 2 (03/2024)
