A Surface Exhibiting Superoleophobicity Both in Air and in Seawater
文献类型：期刊论文
| 作者 | Zhang, Guangyu; Zhang, Xin; Huang, Yan; Su, Zhaohui |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2013-07-15 |
| 卷号 | 5期号:13页码:6400-6403 |
| 关键词 | Polyelectrolyte Multilayers Counterion Ion Exchange Superoleophobicity Surface Wettability |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/am401582d |
| 英文摘要 | Superoleophobic surfaces have attracted increasing interest in recent years due to their potential application in various fields. In this paper, we report a surface that exhibits superoleophobicity both in air and in seawater. A polyelectrolyte multilayer (PEM) is assembled on an aluminum substrate with a micro/nano hierarchical surface structure, and the counterion in the PEM is exchanged with perfluorooctanoate (PFO), making the surface superhydrophobic and superoleophobic in air. When submerged in artificial seawater, the surface exhibits underwater superoleophobicity, with a 1,2-dichloroethane contact angle of 163 degrees. X-ray photoelectron spectroscopic analysis and controlled experiments reveal that, upon exposure to seawater, the PEM spontaneously exchanges the PFO counterion with the chloride and sulfate ions in the seawater, making the surface hydrophilic and hence oil-repelling underwater. When withdrawn from seawater, superoleophobicity in air is restored by treating the surface in a PFO solution shortly to reinstall the PFO counterion. The switching between the two wetting states (superoleophobicity in air and underwater) is completely reversible. This simple and versatile approach can be readily extended to other substrates, making it a promising method for introduction of dual superoleophobicity to surfaces used in many fields. |
| 语种 | 英语 |
| WOS记录号 | WOS:000321810000068 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46859]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Su, Zhaohui |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Guangyu,Zhang, Xin,Huang, Yan,et al. A Surface Exhibiting Superoleophobicity Both in Air and in Seawater[J]. ACS APPLIED MATERIALS & INTERFACES,2013,5(13):6400-6403. |
| APA | Zhang, Guangyu,Zhang, Xin,Huang, Yan,&Su, Zhaohui.(2013).A Surface Exhibiting Superoleophobicity Both in Air and in Seawater.ACS APPLIED MATERIALS & INTERFACES,5(13),6400-6403. |
| MLA | Zhang, Guangyu,et al."A Surface Exhibiting Superoleophobicity Both in Air and in Seawater".ACS APPLIED MATERIALS & INTERFACES 5.13(2013):6400-6403. |
入库方式： OAI收割
来源：化学研究所
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