Intelligent Oil/Water Separation Materials with Reversible Wettability

作者：Gao Yabo; Huang Zhong^*; Jia Quanli; Zhang Haijun; Zhang Shaowei

来源：RARE METAL MATERIALS AND ENGINEERING, 2023, 52(10): 3647-3660.

DOI：10.12442/j.issn.1002-185X.20220748

• oil/water separation
• switchable wettability
• external stimuli

The frequent occurrence of oil spill accidents and the illegal discharge of industrial oily sewage not only cause a waste of natural resources, but also seriously damage our ecological environment. Intelligent oil/water separation materials feature with the cyclically reversible wettability between hydrophilicity and hydrophobicity, which can flexibly deal with various oil/water mixtures and shows excellent oil-water separation ability. In this paper, the phenomenon of surface wettability and mechanism of switchable wettability are introduced, and the research progress of intelligent oil/water separation materials is reviewed according to the different external stimuli, such as pH, temperature, light, gas and etc. Finally, the main problems and challenges in this field are presented, and its future development direction is prospected.

• 单位
  郑州大学