Separation of Emulsified Oil from Oily Wastewater by Functionalized Multiwalled Carbon Nanotubes
文献类型:期刊论文
作者 | Liu J(刘娟)1,2; Li XC(李小成)3; Jia WH(贾卫红)1; Ding MS(丁明山)1,2; Zhang Y(张燕)1,2; Ren SL(任嗣利)1 |
刊名 | Journal of Dispersion Science and Technology |
出版日期 | 2016 |
卷号 | 37期号:9页码:1294-1302 |
ISSN号 | 0193-2691 |
关键词 | Crude oil-in-water emulsion demulsification multiwalled carbon nanotubes oil/water separation |
英文摘要 | Rapid separation of emulsified oil from oily wastewater is one of the most serious challenges faced in the petroleum industry. In this study, a rapid and efficient demulsifier, functionalized multiwalled carbon nanotubes (F-MWCNTs), was prepared and used to separate the emulsified oil from oily wastewater. Demulsification test showed that the oil removal efficiency could attain as high as 99.8% at an optimal condition within a few minutes. The micro-morphology of the oil–water mixture before and after demulsification was observed using a polarizing microscope. It was found that the fine oil droplets experienced a rapid coalescence to form oil phase floating on the water surface. Mechanism of the demulsification process was discussed. The introduction of the functional groups (such as ‒OH and ‒COOH) on the surfaces of F-MWCNTs enable them good amphiphilicity and therefore easily arriving at the oil/water interface to destroy the interfacial protective film mainly composed of asphaltenes and resins. The findings in this work showed that the F-MWCNT is an efficient nanomaterial to remove emulsified oil from the oily wastewater and might have wide application prospects in the petroleum industry. |
学科主题 | 材料科学与物理化学 |
资助信息 | the National Science Foundation of China (51374195;51574217) |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000374897300008 |
源URL | [http://210.77.64.217/handle/362003/20062] |
专题 | 兰州化学物理研究所_OSSO国家重点实验室 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.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, 18 Tianshui Middle Rd, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Lanzhou Inst Chem Phys, Chinese Acad Sci, Lab Clean Energy Chem & Mat, 18 Tianshui Middle Rd, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Liu J,Li XC,Jia WH,et al. Separation of Emulsified Oil from Oily Wastewater by Functionalized Multiwalled Carbon Nanotubes[J]. Journal of Dispersion Science and Technology,2016,37(9):1294-1302. |
APA | Liu J,Li XC,Jia WH,Ding MS,Zhang Y,&Ren SL.(2016).Separation of Emulsified Oil from Oily Wastewater by Functionalized Multiwalled Carbon Nanotubes.Journal of Dispersion Science and Technology,37(9),1294-1302. |
MLA | Liu J,et al."Separation of Emulsified Oil from Oily Wastewater by Functionalized Multiwalled Carbon Nanotubes".Journal of Dispersion Science and Technology 37.9(2016):1294-1302. |
入库方式: OAI收割
来源:兰州化学物理研究所
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