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Simple Method for the Fabrication of Multiple Superwetting Surfaces with Photoresponse
Langmuir ( IF 3.7 ) Pub Date : 2021-09-10 , DOI: 10.1021/acs.langmuir.1c01895
Lei Qiu 1, 2 , Meng Kang 2, 3 , Zhiguang Guo 1, 2 , Weimin Liu 2
Affiliation  

There have been many studies on special wetting surfaces, but most of them just stay superlyophobic in air or underwater. In this work, a membrane with photoresponse is fabricated by spraying hybrid particles of silicon and titanium dioxide. Under the combined action of hybrid particles and 1H,1H,2H,2H-perfluorodecyltrimethoxysilane, the prepared membrane is superhydrophobic in air. Because of the presence of titanium dioxide, the membrane can realize the transformation from superoleophilic underwater to superoleophobic underwater through UV irradiation and heating. Surprisingly, the membranes with superoleophobicity underwater are also superhydrophobic underoil. Thanks to this unique wettability transition, the prepared membrane can be applied to emulsion separation and fog harvesting. This is inspiring for the preparation and the multifunctional application of multiphase media superlyophobic surfaces.

中文翻译:

制备具有光响应的多个超润湿表面的简单方法

已经有许多关于特殊润湿表面的研究,但大多数只是在空气或水下保持超疏液性。在这项工作中,通过喷涂硅和二氧化钛的混合颗粒来制造具有光响应的膜。在杂化粒子与 1 H ,1 H ,2 H ,2 H 的共同作用下-全氟癸基三甲氧基硅烷,制备的膜在空气中具有超疏水性。由于二氧化钛的存在,该膜可以通过紫外线照射和加热实现水下超亲油向水下超疏油的转变。令人惊讶的是,在水下具有超疏油性的膜也是超疏水底层油。由于这种独特的润湿性转变,制备的膜可用于乳液分离和雾收集。这对多相介质超疏液表面的制备和多功能应用具有启发意义。
更新日期:2021-09-21
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