期刊
CHEMICAL ENGINEERING JOURNAL
卷 298, 期 -, 页码 117-124出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2016.03.151
关键词
PolyHIPE foam; Oil adsorption; Superhydrophobicity; Oleophilicity; Regeneration
资金
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Fundamental Research Funds for the Central Universities [30920130112003]
- Natural Science Foundation of China [50972060]
Poly (styrene-divinylbenzene) (P (St-DVB)) foams with porosity as high as 98% were prepared by the method of high internal phase emulsions (HIPEs) in one-step process. The materials exhibited superhydrophobicity and excellent oleophilicity, with the water contact angle (WCA) even exceeding 150 and oil contact angle approaching 0 degrees. The materials fabricated with different types of Fe3O4 particles had varied hierarchical pore structures. And the adsorption capacity of the monolithic foam towards chloroform was as high as 57 g/g. Importantly, the materials soaked with oil could be regenerated effectively by means of centrifugation with oil recovery rate reaching 90%. More importantly, the monolithic PolyHIPEs (polymers obtained by the polymerization of the HIPEs) were subjected to 20 adsorption-centrifugation cycles and superior reusability was demonstrated. These features achieved with PolyHIPEs made them ideal candidates for practical oil removal applications. (C) 2016 Elsevier B.V. All rights reserved.
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