Smart Janus titanium mesh used as a diode for both liquid droplet and air bubble transport,New Journal of Chemistry

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Smart Janus titanium mesh used as a diode for both liquid droplet and air bubble transport
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2021-08-03 , DOI: 10.1039/d1nj02998c
Shi-Ming Zhang ₁ , Yu-Ping Zhang _{1,

2} , Ming-Lin Liu _{1,

2} , Bing-Xing Wang ₁ , Peng-Fei Liu ₁ , Xiuzhi Bai ₁ , Cheng-Xing Cui _{1,

2} , Ling-Bo Qu ₂

Affiliation

Design and fabrication of Janus interface materials as diodes for both liquids and gases are a great challenge in the field of materials science. Here, a Janus titanium mesh with superhydrophobicity and high oleophobicity was fabricated using economical and environmentally friendly electrochemical etching and wet-chemistry methods. Switchable, spontaneous, and unidirectional transport ability for both water and oil fluids was realized in the smart mesh by ultraviolet (UV) irradiation. Unidirectional fluid transport only occurred for fluids with specific surface tension values, and the fluid selectivity was dependent on the UV irradiation time. Underwater bubble unidirectional permeation through the mesh was also achieved using a mesh irradiated for approximately 7 h. More importantly, the mechanism is proposed and elucidated in detail, and the proposed mechanism can more reasonably explain the antigravity unidirectional transport of liquid droplets.

中文翻译：

Smart Janus 钛网用作液滴和气泡传输的二极管

作为液体和气体二极管的 Janus 界面材料的设计和制造是材料科学领域的一大挑战。在这里，使用经济且环保的电化学蚀刻和湿化学方法制造了具有超疏水性和高疏油性的 Janus 钛网。通过紫外线 (UV) 照射在智能网格中实现了水和油流体的可切换、自发和单向传输能力。单向流体传输仅发生在具有特定表面张力值的流体中，流体选择性取决于紫外线照射时间。使用辐照约 7 小时的网也实现了水下气泡单向渗透通过网。更重要的是，提出并详细阐明了该机制，

更新日期：2021-09-06

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