Durable Superhydrophobic/Superoleophilic Polyurethane Sponges Inspired by Mussel and Lotus Leaf for the Selective Removal of Organic Pollutants from Water | |
Li BC(李步成)1; Li LX(李凌霄)1; Wu L(吴磊)1,2; Zhang JP(张俊平)1; Wang AQ(王爱勤)1; Zhang JP(张俊平) | |
刊名 | ChemPlusChem |
2014 | |
卷号 | 79期号:6页码:850-856 |
关键词 | dopamines hydrophobic effect oil/water separation polyurethane sponge superhydrophobic |
ISSN号 | 2192-6506 |
通讯作者 | 张俊平 |
英文摘要 | The low stability of most superhydrophobic materials is one of the hurdles faced in terms of their practical applications. Inspired by mussel and lotus leaf, we report the fabrication of durable superhydrophobic/superoleophilic polyurethane (PU) sponges for the selective removal of organic pollutants from water. The superhydrophobic/superoleophilic PU sponges are prepared through in-turn covalent modification of PU sponges with polydopamine, silver nanoparticles, and dodecyl mercaptan. The morphology and surface chemical composition of the sponges are characterized by scanning electron microscopy and X-ray photoelectron spectroscopy. In addition, the wetting behaviors, stability, and oil/water separation performance of the superhydrophobic sponges are studied. The modified PU sponges show promising superhydrophobic and superoleophilic properties. The sponge has a water contact angle of about 155° and a shedding angle of approximately 3°, whereas the contact angle of oil is around 0°. In addition, the superhydrophobic coating on the PU sponge exhibits excellent mechanical, chemical, and environmental stability, for example, upon laundering, intensive scalpel scratching, long-duration immersion in organic liquids and oils, and subjection to harsh temperatures and UV irradiation. Moreover, the superhydrophobic sponge can be used repeatedly for the selective and quick absorption of various insoluble organic pollutants (for example, petrol, crude oil, and chloroform) from water with high separation efficiency. |
学科主题 | 环境材料与生态化学 |
收录类别 | SCI |
资助信息 | the “Hundred Talents Program” of the Chinese Academy of Sciences |
语种 | 英语 |
WOS记录号 | WOS:000338024300012 |
公开日期 | 2014-12-09 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/6878] |
专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
通讯作者 | Zhang JP(张俊平) |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Li BC,Li LX,Wu L,et al. Durable Superhydrophobic/Superoleophilic Polyurethane Sponges Inspired by Mussel and Lotus Leaf for the Selective Removal of Organic Pollutants from Water[J]. ChemPlusChem,2014,79(6):850-856. |
APA | Li BC,Li LX,Wu L,Zhang JP,Wang AQ,&张俊平.(2014).Durable Superhydrophobic/Superoleophilic Polyurethane Sponges Inspired by Mussel and Lotus Leaf for the Selective Removal of Organic Pollutants from Water.ChemPlusChem,79(6),850-856. |
MLA | Li BC,et al."Durable Superhydrophobic/Superoleophilic Polyurethane Sponges Inspired by Mussel and Lotus Leaf for the Selective Removal of Organic Pollutants from Water".ChemPlusChem 79.6(2014):850-856. |
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