Biomass-derived oriented neurovascular network-like superhydrophobic aerogel as robust and recyclable oil droplets captor for versatile oil/water separation.
Compressibility
Emulsion purification
Kapok fiber
Oil/Water mixture separation
Superhydrophobic aerogel
Journal
Journal of hazardous materials
ISSN: 1873-3336
Titre abrégé: J Hazard Mater
Pays: Netherlands
ID NLM: 9422688
Informations de publication
Date de publication:
15 02 2022
15 02 2022
Historique:
received:
27
07
2021
revised:
18
09
2021
accepted:
28
09
2021
pubmed:
18
10
2021
medline:
27
1
2022
entrez:
17
10
2021
Statut:
ppublish
Résumé
Using tubular kapok fibers (KF) and sodium alginate (SA) as the natural building block, we put forward a novel oriented neurovascular network-like superhydrophobic aerogel with robust dry and wet compression resilience by directional freeze-drying and chemical vapor deposition. In the block, SA forms aligned channel structures providing space for rapid oil transmission, while KF serves as vascular-like capillaries acting as instant "tentacle" to capture the tiny oil droplets in water, facilitating fascinating oil capture efficiency for versatile oil/water separation, The aerogel after dry and wet compression (under a strain of 60%) can recover 96.0% and 97.3% its original, respectively, facilitating stable oil recovery (81.1-89.8%) by squeezing, high separation efficiency (99.04-99.64%) and permeation flux separating oil contaminants from water. A pump-supported experiment shows the aerogel efficiently collecting oil contaminants from the water's surface and bottom by 11503-25611 L·m
Identifiants
pubmed: 34656938
pii: S0304-3894(21)02361-X
doi: 10.1016/j.jhazmat.2021.127393
pii:
doi:
Substances chimiques
Emulsions
0
Oils
0
Waste Water
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
127393Informations de copyright
Copyright © 2021 Elsevier B.V. All rights reserved.