A Super-Hydrophobic and Super-Oleophilic Coating Mesh Film for the Separation of Oil and Water
Lin Feng,* Zhongyi Zhang, Zhenhong Mai, Yongmei Ma, Biqian Liu, Lei Jiang,* and Daoben Zhu
A novel coating mesh film with both super-hydrophobic and super-oleophilic properties was prepared by a facile and inexpensive spray-and-dry method. The CA for water on this film is greater than 150? and for diesel oil it is 0? A homogeneous emulsion containing low surface-energy material of polytetrafluoroethylene was used as the precursor. The nanostructured craterlike morphology on the microscale rough surface combined with the chemical composition contributes to these unique properties. The film can be used effectively for the separation of oil and water and is a feasible alternative to current separation methods.
Angew. Chem. Int. Ed. 2004, 43, 2012 ?014