期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 19, 页码 22318-22326出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c02118
关键词
acoustofluidics; focused surface acoustic waves; microbubbles; oil/water separation; PVA-based porous gel materials; superhydrophobicity
资金
- National Natural Science Foundation of China [51575439, 51711530237]
- Royal Society-Newton Mobility Grant [IE161541]
- International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies
- State Key Laboratory for Manufacturing Systems Engineering [sklms2017006]
Porous materials have a variety of applications such as catalysis, gas separation, sensing, tissue engineering, sewage treatment, and so on. However, there are still challenges in the synthesis of porous materials with light weight, high porosity, and superhydrophobicity. Herein, we demonstrate one acoustic-controlled microbubble generation method, which is used to synthesize 3D polymer porous materials. The acoustic-controlled microbubble generation based on focused surface acoustic wave (FSAW) is suitable for not only the generation of gas-in-oil microbubbles but also the gas-in-water microbubbles. The size of microbubbles can be real-time controlled by adjusting the frequency or the driving voltage of the FSAW. The as-prepared poly(vinyl alcohol) (PVA) foams composed of microbubbles can be used as a template to fabricate the PVA-based porous gel materials through freezing-thawing cyclic processing, and the various sized bubbles result in different porosity of the PVA-based porous gel materials. Moreover, excellent properties like oleophilicity and superhydrophobicity of the PVA-based porous gel materials can be obtained through a further hydrophobic modification treatment. The oil/water separation experiments have been done to demonstrate the good absorption and reliability of the modified porous gel materials, which are capable of multiple uses.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据