Reversible Photodriven Droplet Motion on Ti3C2 MXene Film for Diverse Liquids
Reversible Photodriven Droplet Motion on Ti3C2 MXene Film for Diverse Liquids
复制标题
Ti3C2 MXene 薄膜上不同液体的可逆光驱动液滴运动
DOI：
10.1021/acsami.0c01632
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发表时间：
2020
影响因子：
9.5
通讯作者：
Shu Da
中科院分区：
文献类型：
--
作者：
Yu Jiangping;Lao Junchao;Chu D;an;Wang Donghong;Tang Ding;Li Dayong;Zhu Guoliang;Dong Anping;Peng Yinghong;Luo Jiayan;Sun Baode;Shu Da
在具有可逆润湿性的特定表面上操纵液滴对于从科学到工业的各种应用都非常重要。本文利用MXene薄膜的二维材料，设计了一种具有可编程润湿性的智能、柔性光驱动液滴运动（PDM）装置的概念。由于MXene光热特性，该装置中的凡士林层在光照的热转化下处于固态和液态之间的过渡状态，从而在滑动和固定方面吸引地为液体运动产生可逆润湿性。通过光照的灵活性，可以设计多种液体运动路径，这是对多种液体运动形成所需路径的革命性增强。此外，我们还展示了在背面照明下的液体运动，这对微流体系统、微发动机和液体操作等应用具有深远的影响。
The manipulation of liquid droplets on a specific surface with reversible wettability is of great importance for various applications from science to industry. Herein, the concept of a smart, flexible photodriven droplet motion (PDM) device with programmable wettability is designed using the 2D material of MXene film. Because of the MXene photothermal property, the Vaseline layer in the device is in transition between solid and liquid states under the heat transformation due to light illumination, thus attractively producing a reversible wettability for liquid motion with respect to sliding and pinning. Multifarious pathways for liquid motion could be designed through the flexibility of light illumination, which is a revolutionary enhancement in diverse liquid motion to form the desired pathways. In addition, we demonstrated liquid motion under illumination of the back face, which has a profound influence on applications, such as microfluidic systems, microengines, and liquid manipulation.