Recyclable magnetic graphene oxide for rapid and efficient demulsification of crude oil-in-water emulsion | |
Liu J(刘娟)1,2; Wang HJ(王环江)1,2; Li XC(李小成)3; Jia WH(贾卫红)1; Zhao, Yapu4; Ren SL(任嗣利)1 | |
刊名 | Fuel |
2017 | |
卷号 | 189页码:79-87 |
关键词 | Magnetic graphene oxide Demulsification Crude oil-in-water emulsion Recyclability Non-covalent interaction analysis |
ISSN号 | 0016-2361 |
通讯作者 | 任嗣利 |
英文摘要 | 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 ∼10 mg/L, corresponding to a demulsification efficiency of 99.98% at an optimal dosage. Quantum chemical calculation results indicated that the π-π/σ-π 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. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | the National Natural Science Foundation of China (51374195;51574217) |
语种 | 英语 |
WOS记录号 | WOS:000387775500010 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/20559] |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 兰州化学物理研究所_清洁能源化学与材料实验室 |
作者单位 | 1.State Key Laboratory of Solid Lubrication, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China 2.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 3.Laboratory of Clean Energy Chemistry and Materials, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China 4.State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China |
推荐引用方式 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,Zhao, Yapu,&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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