Bioinspired superoleophobic/superhydrophilic functionalized cotton for efficient separation of immiscible oil-water mixtures and oil-water emulsions.

Emulsions Oil-spills Oil-water separation Superhydrophilic Superoleophobic

Journal

Journal of colloid and interface science
ISSN: 1095-7103
Titre abrégé: J Colloid Interface Sci
Pays: United States
ID NLM: 0043125

Informations de publication

Date de publication:
15 Jul 2019
Historique:
received: 10 02 2019
revised: 08 04 2019
accepted: 10 04 2019
pubmed: 16 4 2019
medline: 16 4 2019
entrez: 16 4 2019
Statut: ppublish

Résumé

Oil contamination is pressing environmental and natural resource issues. Oil-water separation technology can be used for water purification. Traditional methods are either time consuming or energy intensive. Bioinspired materials with combination of affinity and/or repellence towards oil and water in mesh-based methods have attracted widespread attention in the oil-water separation. Among existing materials, superhydrophobic/superoleophilic materials are prone to contamination by oil. Superhydrophilic/underwater superoleophobic materials can only operate underwater which restricts the practical use. In contrast, superoleophobic/superhydrophilic materials are desirable for oil-water separation. However, traditional mesh-based method cannot be used for separation of emulsions since the dispersed microdroplets can easily pass through the mesh pores. Superhydrophobic/superoleophilic cotton has been used for separation of water-in-oil emulsions. In this study, a facile method to fabricate bioinspired superoleophobic/superhydrophilic cotton was developed. The functionalized cotton exhibits an oil-repellent and water-wetting behavior and is capable of separating both immiscible oil-water mixtures and also oil-in-water emulsions without oil contamination. This developed cotton is of interest for various applications.

Identifiants

DOI: 10.1016/j.jcis.2019.04.031 PMID: 30986711
pubmed: 30986711
pii: S0021-9797(19)30453-9
doi: 10.1016/j.jcis.2019.04.031
pii:
doi:

Types de publication

Journal Article

Langues

eng

Pagination

123-130

Informations de copyright

Copyright © 2019 Elsevier Inc. All rights reserved.

Auteurs

Feiran Li (F)

Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education and School of Mechatronics Engineering, Harbin Institute of Technology, Xidazhi, 92, Harbin 150001, PR China; Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics (NLBB), The Ohio State University, 201 W. 19th Avenue, Columbus, OH 43210-1142, USA.

Bharat Bhushan (B)

Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education and School of Mechatronics Engineering, Harbin Institute of Technology, Xidazhi, 92, Harbin 150001, PR China; Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics (NLBB), The Ohio State University, 201 W. 19th Avenue, Columbus, OH 43210-1142, USA. Electronic address: bhushan.2@osu.edu.

Yunlu Pan (Y)

Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education and School of Mechatronics Engineering, Harbin Institute of Technology, Xidazhi, 92, Harbin 150001, PR China. Electronic address: yunlupan@hit.edu.cn.

Xuezeng Zhao (X)

Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education and School of Mechatronics Engineering, Harbin Institute of Technology, Xidazhi, 92, Harbin 150001, PR China.

Classifications MeSH