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Recyclable magnetic graphene oxide for rapid and efficient demulsification of crude oil-in-water emulsion
Liu J; Wang HJ; Li XC; Jia WH; Zhao YP(赵亚溥); Ren SL; Ren, SL (reprint author), Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China.
Source PublicationFUEL
2017
Volume189Pages:79-87
ISSN0016-2361
Abstract

Graphene oxide (GO) nanosheets have been experimentally proved to be a highly efficiency, rapid and universal demulsifier to break up the crude oil-in-water emulsion and/or the emulsified oily waste water in our previous study. To recycle the GO nanosheets and avoid the possible contamination of GO for crude oil, in this work, the magnetic graphene oxide (M-GO) was successfully synthesized and used for separating oil/water emulsions. Demulsification tests indicated that M-GO could separate the oil/water emulsions within a few minutes and recycle 6-7 times without losing its demulsification capability. The residual oil content in the separated water was as low as similar to 10 mg/L, corresponding to a demulsification efficiency of 99.98% at an optimal dosage. Quantum chemical calculation results indicated that the pi-pi/sigma-pi interactions between GO materials and asphaltene molecules are the major driven forces for the high demulsification performance of M-GO nanosheets. This work not only provides a promising demulsifies to demulsify the crude oil-in-water emulsion or the oily wastewater but also give a deep understanding on the intrinsic interaction between demulsifiers and asphaltenes. (C) 2016 Elsevier Ltd. All rights reserved.

KeywordMagnetic Graphene Oxide Demulsification Crude Oil-in-water Emulsion Recyclability Non-covalent Interaction Analysis
DOI10.1016/j.fuel.2016.10.066
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000387775500010
WOS KeywordMagnetic graphene oxide ; Demulsification ; Crude oil-in-water emulsion ; Recyclability ; Non-covalent interaction analysis
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China [51374195, 51574217]
DepartmentLNM纳/微系统力学与物理力学
Classification一类
Ranking5
Citation statistics
Cited Times:44[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59947
Collection非线性力学国家重点实验室
Corresponding AuthorRen, SL (reprint author), Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China.
Recommended Citation
GB/T 7714
Liu J,Wang HJ,Li XC,et al. Recyclable magnetic graphene oxide for rapid and efficient demulsification of crude oil-in-water emulsion[J]. FUEL,2017,189:79-87.
APA Liu J.,Wang HJ.,Li XC.,Jia WH.,赵亚溥.,...&Ren, SL .(2017).Recyclable magnetic graphene oxide for rapid and efficient demulsification of crude oil-in-water emulsion.FUEL,189,79-87.
MLA Liu J,et al."Recyclable magnetic graphene oxide for rapid and efficient demulsification of crude oil-in-water emulsion".FUEL 189(2017):79-87.
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