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Organic Media Superwettability: On-Demand Liquid Separation by Controlling Surface Chemistry
- Source :
- ACS applied materialsinterfaces. 10(43)
- Publication Year :
- 2018
-
Abstract
- Superwettability involving water affinity has demonstrated prominent advantages in oil-water separation. However, superwetting surfaces in nonpolar liquid-polar liquid systems are rarely explored for the separation of organic liquids. In this work, a protocol of elaborately controlling surface chemistry is presented to construct dual superlyophobic surfaces for polar or nonpolar liquids in opposite organic media. On two kinds of silver-roughened copper coatings, a polar hydroxyl group is subtly integrated with nonpolar perfluoroalkyl chain at the nanoscale. Prewetted by one organic liquid, the obtained dual superlyophobic mesh can selectively intercept other immiscible organic liquids, realizing high-efficiency on-demand separation. In theory, the dual superlyophobic surfaces in organic media are strongly dependent on their affinity toward polar liquids and the surface roughness. The discovery may promote the development of organic liquid-related interfacial materials.
- Subjects :
- Surface (mathematics)
Materials science
010405 organic chemistry
chemistry.chemical_element
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Organic media
Copper
0104 chemical sciences
Chemical engineering
chemistry
On demand
Surface roughness
Polar
General Materials Science
Organic liquids
0210 nano-technology
Nanoscopic scale
Subjects
Details
- ISSN :
- 19448252
- Volume :
- 10
- Issue :
- 43
- Database :
- OpenAIRE
- Journal :
- ACS applied materialsinterfaces
- Accession number :
- edsair.doi.dedup.....b51f325ff00ff42442d012346d7f1051