Fabrication of superhydrophobic surfaces by smoke deposition and application in oil-water separation

Qiu, Wenlian, Xu, Du, Liu, Bin, Shen, Lie and Guo, Qipeng 2015, Fabrication of superhydrophobic surfaces by smoke deposition and application in oil-water separation, RSC advances, vol. 5, no. 87, pp. 71329-71335, doi: 10.1039/c5ra12287b.

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Title Fabrication of superhydrophobic surfaces by smoke deposition and application in oil-water separation
Author(s) Qiu, Wenlian
Xu, Du
Liu, Bin
Shen, Lie
Guo, QipengORCID iD for Guo, Qipeng orcid.org/0000-0001-7113-651X
Journal name RSC advances
Volume number 5
Issue number 87
Start page 71329
End page 71335
Total pages 7
Publisher Royal Society of Chemistry
Place of publication Cambridge, Eng.
Publication date 2015-08
ISSN 2046-2069
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
OIL/WATER SEPARATION
MESH FILM
WETTABILITY
COLLECTION
ABSORPTION
CONTACT
REMOVAL
ROBUST
Summary  Utilizing the smoke emitted by discarded silicone combustion, a simple method of smoke deposition is presented for fabricating a superhydrophobic surface with outstanding water repellence, which exhibited a water contact angle of 164 ± 0.8° and a sliding angle of lower than 1°. In addition, the as-prepared surface possesses favourable heat, water impact and water immersion stabilities. Oil leakages seriously endanger both the environment and the social economy. By this simple smoke deposition method, a selective-wettability copper mesh has been fabricated to separate oil-water mixtures. The smoke-deposited mesh achieved a high separation efficiency of over 93% for various oils, and showed excellent reusability, maintaining a high separation efficiency over 10 cycles. The water repellence of the used mesh can be refreshed by recoating with silicone and smoke deposition. This work provides a new strategy to utilize discarded silicone to fabricate superhydrophobic surfaces and oil-water separation meshes.
Language eng
DOI 10.1039/c5ra12287b
Field of Research 091209 Polymers and Plastics
Socio Economic Objective 860607 Plastic Products (incl. Construction Materials)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30080088

Document type: Journal Article
Collection: Institute for Frontier Materials
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