Superhydrophobic meshes that can repel hot water and strong corrosive liquids used for efficient gravity-driven oil/water separation

doi:10.1039/c6nr01298a

	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
发表期刊	Nanoscale
ISSN	2040-3364
卷号	8 期号:14 页码:7638-7645
摘要	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.
关键词	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
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000373722000034
出版者	Royal Society of Chemistry
EI入藏号	20161602270137
EI主题词	Water filtration
EI分类号	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
原始文献类型	Journal article (JA)
引用统计	被引频次：374[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.nwnu.edu.cn/handle/39RV6HYL/31102
专题	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
通讯作者	Li, Jian
作者单位	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
第一作者单位	生态环境相关高分子材料教育部重点实验室
通讯作者单位	生态环境相关高分子材料教育部重点实验室
第一作者的第一单位	生态环境相关高分子材料教育部重点实验室
推荐引用方式 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.