Superhydrophobic meshes that can repel hot water and strong corrosive liquids used for efficient gravity-driven oil/water separation
Li, Jian; Kang, Ruimei; Tang, Xiaohua; She, Houde; Yang, Yaoxia; Zha, Fei
2016-04-14
Source PublicationNanoscale
ISSN2040-3364
Volume8Issue:14Pages:7638-7645
AbstractOil-polluted water has become a worldwide problem due to increasing industrial oily wastewater as well as frequent oil-spill pollution. Compared with underwater superoleophobic (water-removing) filtration membranes, superhydrophobic/superoleophilic (oil-removing) materials have advantages as they can be used for the filtration of heavy oil or the absorption of floating oil from water/oil mixtures. However, most of the superhydrophobic materials used for oil/water separation lose their superhydrophobicity when exposed to hot (e.g. >50 °C) water and strong corrosive liquids. Herein, we demonstrate superhydrophobic overlapped candle soot (CS) and silica coated meshes that can repel hot water (about 92 °C) and strong corrosive liquids, and were used for the gravity driven separation of oil-water mixtures in hot water and strong acidic, alkaline, and salty environments. To the best of our knowledge, we are unaware of any previously reported studies on the use of superhydrophobic materials for the separation of oil from hot water and corrosive aqueous media. In addition, the as-prepared robust superhydrophobic CS and silica coated meshes can separate a series of oils and organic solvents like kerosene, toluene, petroleum ether, heptane and chloroform from water with a separation efficiency larger than 99.0%. Moreover, the as-prepared coated mesh still maintained a separation efficiency above 98.5% and stable recyclability after 55 cycles of separation. The robust superhydrophobic meshes developed in this work can therefore be practically used as a highly efficient filtration membrane for the separation of oil from harsh water conditions, benefiting the environment and human health. © 2016 The Royal Society of Chemistry.
KeywordChlorine compounds Corrosion Crude oil Efficiency Heavy oil production Hydrophobicity Liquids Membranes Microfiltration Mixtures Oil spills Organic solvents Silica Water Water absorption Water pollution Filtration membranes Oil spill pollution Oil-water mixture Oil/water separation Salty environments Separation efficiency Superhydrophobic materials Superhydrophobicity
DOI10.1039/c6nr01298a
Indexed ByEI ; SCIE
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000373722000034
PublisherRoyal Society of Chemistry
EI Accession Number20161602270137
EI KeywordsWater filtration
EI Classification Number453 Water Pollution ; 453.1 Water Pollution Sources ; 511.1 Oil Field Production Operations ; 512.1 Petroleum Deposits ; 802.3 Chemical Operations ; 803 Chemical Agents and Basic Industrial Chemicals ; 913.1 Production Engineering ; 931.2 Physical Properties of Gases, Liquids and Solids ; 951 Materials Science
Original Document TypeJournal article (JA)
Citation statistics
Cited Times:372[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.nwnu.edu.cn/handle/39RV6HYL/31102
Collection实体学院_化学化工学院
科研机构_生态环境相关高分子材料教育部重点实验室
实体学院_化学化工学院_化工系
Corresponding AuthorLi, Jian
AffiliationNorthwest Normal Univ, Coll Chem & Chem Engn, Key Lab Gansu Polymer Mat, Key Lab Eco Environment Related Polymer Mat,Minis, Lanzhou 730070, Peoples R China
First Author Affilication生态环境相关高分子材料教育部重点实验室
Corresponding Author Affilication生态环境相关高分子材料教育部重点实验室
First Signature Affilication生态环境相关高分子材料教育部重点实验室
Recommended Citation
GB/T 7714
Li, Jian,Kang, Ruimei,Tang, Xiaohua,et al. Superhydrophobic meshes that can repel hot water and strong corrosive liquids used for efficient gravity-driven oil/water separation[J]. Nanoscale,2016,8(14):7638-7645.
APA Li, Jian,Kang, Ruimei,Tang, Xiaohua,She, Houde,Yang, Yaoxia,&Zha, Fei.(2016).Superhydrophobic meshes that can repel hot water and strong corrosive liquids used for efficient gravity-driven oil/water separation.Nanoscale,8(14),7638-7645.
MLA Li, Jian,et al."Superhydrophobic meshes that can repel hot water and strong corrosive liquids used for efficient gravity-driven oil/water separation".Nanoscale 8.14(2016):7638-7645.
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