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Micro/nano hierarchical poly(acrylic acid)-grafted-poly(vinylidene fluoride) layer coated foam membrane for temperature-controlled separation of heavy oil/water
Zhang, WB; Zhang, F; Gao, SJ; Zhu, YZ; Li, JY; Jin, J; Jin, J (reprint author), Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Nanobion Div & I Lab, Suzhou 215123, Peoples R China.
2015
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume156Pages:207—214
Subtype期刊文献
AbstractHeavy crude oil/water separation is becoming a worldwide issue and a tougher challenging as compared to light crude oil due to its high viscosity. Herein, we report a facile approach for high-efficient heavy oil/water separation by combing superwetting membrane filtration with elevated temperature during separation process. Micro/nano hierarchical PAA-g-PVDF layer coated nickel foam membranes are successfully fabricated through a salt-induced phase inversion process. The PAA-g-PVDF coating layer endows the foam membrane a superhydrophilic and underwater superoleophobic property, and a low heavy-oil-adhesion force. At an elevated temperature (up to 85 degrees C) where the viscosity of heavy oil is dramatically decreased with the increase of temperature, the foam membranes are applicable for temperature-controlled separation of heavy oil/water mixture with various heavy oil/water volume ratio with high separation efficiency (the contents of heavy oil in the filtrate after one-time separation <20 ppm) and high flux up to similar to 10(4) L m(-2) h(-1), solely driven by gravity. Most importantly, the foam membrane exhibits an excellent anti-heavy-oil-fouling property and is easily recycled for long-term use. The high separation performance with elevated temperature, combined with easy scale up, makes the foam membranes an attractive option for treating heavy oil containing wastewater. (C) 2015 Elsevier B.V. All rights reserved.
KeywordOil-water Separation Flounder Paralichthys-olivaceus Exfoliated Graphite Physical-properties Pvdf Membranes Superoleophobicity Ultrafiltration Microfiltration Emulsions Surfaces
Language英语
WOS IDWOS:000366537900013
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24988
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorJin, J (reprint author), Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Nanobion Div & I Lab, Suzhou 215123, Peoples R China.
Recommended Citation
GB/T 7714
Zhang, WB,Zhang, F,Gao, SJ,et al. Micro/nano hierarchical poly(acrylic acid)-grafted-poly(vinylidene fluoride) layer coated foam membrane for temperature-controlled separation of heavy oil/water[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2015,156:207—214.
APA Zhang, WB.,Zhang, F.,Gao, SJ.,Zhu, YZ.,Li, JY.,...&Jin, J .(2015).Micro/nano hierarchical poly(acrylic acid)-grafted-poly(vinylidene fluoride) layer coated foam membrane for temperature-controlled separation of heavy oil/water.SEPARATION AND PURIFICATION TECHNOLOGY,156,207—214.
MLA Zhang, WB,et al."Micro/nano hierarchical poly(acrylic acid)-grafted-poly(vinylidene fluoride) layer coated foam membrane for temperature-controlled separation of heavy oil/water".SEPARATION AND PURIFICATION TECHNOLOGY 156(2015):207—214.
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