Functionalized carbon black nanoparticles used for separation of emulsified oil from oily wastewater | |
Department | 固体润滑国家重点实验室 |
Wang HJ(王环江)1,2; Xu HY(徐海燕)1,2; Jia WH(贾卫红)1,2; Ren SL(任嗣利)1; Ren SL(任嗣利) | |
2018 | |
Source Publication | Journal of Dispersion Science and Technology |
ISSN | 0193-2691 |
Volume | 39Issue:4Pages:497-506 |
Abstract | Functionalized carbon black (F-CB) nanoparticles were synthesized by covalently grafting the polyvinyl alcohol on carbon black (CB) surfaces and used as demulsifier to separate the oil from the emulsified oily wastewater. The bottle test showed that the residual oil content in the separated water was as low as ∼ 50 mg/L corresponding to a demulsification efficiency of about 99.90% at an optimal condition within a few minutes. It was believed that the surface wettability of the carbon black could be tuned by modifying with the PVA molecules, which enables the F-CB nanopartilces to be readily migrated to the oil/water interface and have the opportunity to interact with and/or displace the stabilizers of the emulsion. As a result, the demulsification process was accomplished with the coalescence of the oil droplets promoted by the F-CB nanoparticles. The interaction behavior between F-CB nanoparticles and asphaltenes was investigated by quantum chemical calculations. The results showed that the F-CB nanoparticles have strong interaction with the asphaltene molecules in form of π−π and θ−π forces. The findings in present study are significant for understanding the demulsification mechanism and also provide a novel demulsifier for the demulsification of emulsified oily wastewater. |
Keyword | Carbon Black Demulsification Emulsified Oily Wastewater Quantum Chemical Calculation - And - Interactions |
Subject Area | 材料科学与物理化学 |
DOI | 10.1080/01932691.2017.1298040 |
Funding Organization | the National Science Foundation of China (Grant No. 51574217 ; 51374195) |
Indexed By | SCI |
If | 1.454 |
Language | 英语 |
Funding Project | 聚合物摩擦学研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22556 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Ren SL(任嗣利) |
Affiliation | 1.State Key laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences, Lanzhou, P. R. China 2.University of Chinese Academy of Sciences, Beijing, P. R. China |
Recommended Citation GB/T 7714 | Wang HJ,Xu HY,Jia WH,et al. Functionalized carbon black nanoparticles used for separation of emulsified oil from oily wastewater[J]. Journal of Dispersion Science and Technology,2018,39(4):497-506. |
APA | Wang HJ,Xu HY,Jia WH,Ren SL,&Ren SL.(2018).Functionalized carbon black nanoparticles used for separation of emulsified oil from oily wastewater.Journal of Dispersion Science and Technology,39(4),497-506. |
MLA | Wang HJ,et al."Functionalized carbon black nanoparticles used for separation of emulsified oil from oily wastewater".Journal of Dispersion Science and Technology 39.4(2018):497-506. |
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