Northwest Normal University Institutional Repository （NWNU_IR）
| 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
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| 2016-04-14 | |
| Source Publication | Nanoscale
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| ISSN | 2040-3364 |
| Volume | 8Issue:14Pages:7638-7645 |
| Abstract | Oil-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. |
| Keyword | Chlorine 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 |
| DOI | 10.1039/c6nr01298a |
| Indexed By | EI ; SCIE |
| Language | 英语 |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000373722000034 |
| Publisher | Royal Society of Chemistry |
| EI Accession Number | 20161602270137 |
| EI Keywords | Water filtration |
| EI Classification Number | 453 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 Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://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 Author | Li, Jian |
| Affiliation | Northwest 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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