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DOI | 10.1038/s41467-018-03906-5 |
Visible light guided manipulation of liquid wettability on photoresponsive surfaces | |
Kwon, Gibum1,3; Panchanathan, Divya1; Mahmoudi, Seyed Reza1; Gondal, Mohammed A.2; McKinley, Gareth H.1; Varanasi, Kripa K.1 | |
2017-04-25 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Saudi Arabia |
英文摘要 | Photoresponsive titania surfaces are of great interest due to their unique wettability change upon ultraviolet light illumination. However, their applications are often limited either by the inability to respond to visible light or the need for special treatment to recover the original wettability. Sensitizing TiO2 surfaces with visible light-absorbing materials has been utilized in photovoltaic applications. Here we demonstrate that a dye-sensitized TiO2 surface can selectively change the wettability towards contacting liquids upon visible light illumination due to a photo-induced voltage across the liquid and the underlying surface. The photo-induced wettability change of our surfaces enables external manipulation of liquid droplet motion upon illumination. We show demulsification of surfactant-stabilized brine-in-oil emulsions via coalescence of brine droplets on our dye-sensitized TiO2 surface upon visible light illumination. We anticipate that our surfaces will have a wide range of applications including microfluidic devices with customizable wettability, solar-driven oil-water clean-up and demulsification technologies. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400066300001 |
WOS关键词 | ELECTRON-TRANSFER ; TIO2 PHOTOCATALYSIS ; SOLAR-CELLS ; CONVERSION ; OIL ; REGENERATION ; ENHANCEMENT ; DYNAMICS ; KINETICS ; IODIDE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203795 |
专题 | 资源环境科学 |
作者单位 | 1.MIT, Dept Mech Engn, Cambridge, MA 02139 USA; 2.King Fahd Univ Petr & Minerals, Dept Phys, Dhahran 34464, Saudi Arabia; 3.Univ Kansas, Dept Mech Engn, Lawrence, KS 66045 USA |
推荐引用方式 GB/T 7714 | Kwon, Gibum,Panchanathan, Divya,Mahmoudi, Seyed Reza,et al. Visible light guided manipulation of liquid wettability on photoresponsive surfaces[J]. NATURE COMMUNICATIONS,2017,8. |
APA | Kwon, Gibum,Panchanathan, Divya,Mahmoudi, Seyed Reza,Gondal, Mohammed A.,McKinley, Gareth H.,&Varanasi, Kripa K..(2017).Visible light guided manipulation of liquid wettability on photoresponsive surfaces.NATURE COMMUNICATIONS,8. |
MLA | Kwon, Gibum,et al."Visible light guided manipulation of liquid wettability on photoresponsive surfaces".NATURE COMMUNICATIONS 8(2017). |
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