Laser-Heat Surface Treatment of Superwetting Copper Foam for Efficient Oil-Water Separation

文献类型： 外文期刊

第一作者： Wang, Qinghua

作者： Wang, Qinghua;Liu, Chao;Yu, Zhongjie;Wang, Taiyuan;Ye, Mengqi;Pei, Xianjun;Liu, Xiaochao;Wang, Qinghua;Yin, Kai;Wang, Huixin;Wang, Huixin

作者机构：

关键词： laser surface treatment; micro; nanostructure; surface chemistry; superwetting; oil-water separation

期刊名称：NANOMATERIALS （ 影响因子：5.3； 五年影响因子：5.4 ）

ISSN：

年卷期： 2023 年 13 卷 4 期

页码：

收录情况： SCI

摘要： Oil pollution in the ocean has been a great threaten to human health and the ecological environment, which has raised global concern. Therefore, it is of vital importance to develop simple and efficient techniques for oil-water separation. In this work, a facile and low-cost laser-heat surface treatment method was employed to fabricate superwetting copper (Cu) foam. Nanosecond laser surface texturing was first utilized to generate micro/nanostructures on the skeleton of Cu foam, which would exhibit superhydrophilicity/superoleophilicity. Subsequently, a post-process heat treatment would reduce the surface energy, thus altering the surface chemistry and the surface wettability would be converted to superhydrophobicity/superoleophilicity. With the opposite extreme wetting scenarios in terms of water and oil, the laser-heat treated Cu foam can be applied for oil-water separation and showed high separation efficiency and repeatability. This method can provide a simple and convenient avenue for oil-water separation.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序