气候变化领域集成服务门户(CCPortal): Surface-engineered sponges for recovery of crude oil microdroplets from wastewater

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DOI	10.1038/s41893-019-0446-4
	Surface-engineered sponges for recovery of crude oil microdroplets from wastewater
	Cherukupally P.; Sun W.; Wong A.P.Y.; Williams D.R.; Ozin G.A.; Bilton A.M.; Park C.B.
发表日期	2020
ISSN	2398-9629
起始页码	136
结束页码	143
卷号	3 期号:2
英文摘要	In the United States, the oil industry produces over 15 billion barrels of wastewater contaminated with crude oil microdroplets annually. Current methods are ineffective for the removal of these microdroplets at the variable pH conditions commonly found in wastewater. Here, an innovative surface-engineered sponge (SEnS) that synergistically combines surface chemistry, charge and roughness, provides a solution to this problem. Over broad pH conditions, the SEnS rapidly adsorbed oil microdroplets with 95–99% removal efficiency, predominantly facilitated by Lifshitz–van der Waals forces. At the optimum pH, 92% of the oil was adsorbed within 10 min. The oil was subsequently recovered by solvent extraction under ambient conditions, and the cleaned SEnS was reused for oil microdroplets adsorption ten times. The combined efficacy and reusability can enable large-scale removal and recovery of crude oil microdroplets from wastewater. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	pH; Recovery; Reusability; Solvent extraction; Surface chemistry; Van der Waals forces; Ambient conditions; Micro droplets; Oil industries; Optimum pH; pH condition; Removal and recoveries; Removal efficiencies; Crude oil
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163119
作者单位	Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada; Department of Chemical Engineering, Imperial College London, London, United Kingdom; Department of Chemistry, University of Toronto, Toronto, ON, Canada; State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
推荐引用方式 GB/T 7714	Cherukupally P.,Sun W.,Wong A.P.Y.,et al. Surface-engineered sponges for recovery of crude oil microdroplets from wastewater[J],2020,3(2).
APA	Cherukupally P..,Sun W..,Wong A.P.Y..,Williams D.R..,Ozin G.A..,...&Park C.B..(2020).Surface-engineered sponges for recovery of crude oil microdroplets from wastewater.Nature Sustainability,3(2).
MLA	Cherukupally P.,et al."Surface-engineered sponges for recovery of crude oil microdroplets from wastewater".Nature Sustainability 3.2(2020).