期刊
GLOBAL CHALLENGES
卷 1, 期 3, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/gch2.201600014
关键词
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资金
- National Natural Science Foundation of China [21674064, 21404072]
- Shenzhen Science and Technology Foundation [JCYJ 20160520173802186, JCYJ20140418182819116]
- Natural Science Foundation of SZU [827000040, 201447]
This study describes the fabrication of bioinspired mechano-regulated interfaces (MRI) for the separation and collection of oil spills from water. The MRI consists of 3D-interconnected, microporous structures of sponges made of ultrasoft elastomers (Ecoflex). To validate the MRI strategy, ecoflex sponges are first fabricated with a low-cost sugar-leaching method. This study then systematically investigates the absorption capacity (up to 1280% for chloroform) of the sponges to different oils and organic solvents. More importantly, the oil flux through the as-made sponges is controlled by mechanical deformation, which increases up to approximate to 33-fold by tensile strain applied to the sponge from 0 to 400%. On the basis of MRI, this study further demonstrates the application of ecoflex sponges in oil skimmers for selective collecting oil from water with high efficiency and durable recyclability. The as-developed MRI strategy has opened a new path to allow rational design and dynamical control toward developing high performance devices for oil permeation and selective collection of oil spills from water.
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