Fabricating superamphiphobic surface with fluorosilane glued carbon nanospheres films

A stable superamphiphobic surface was successfully prepared with the carbon nanospheres film by means of a two steps method. Carbon nanosphere film was deposited by soot of burning cooking oil followed by fluorosilane modification. The results showed that the fluorosilane adopted for the surface modification can glue the loose carbon nanospheres, and make the surface energy decreased. The method reported here is suitable for the large-scale preparation of superamphiphobic surface. The scanning electron microscopy confirmed the synergistic binary geometric structures at micro- and nanometer scale. Transmission electron microscope examination demonstrated that all the carbon nanospheres have uniform diameter of about 50 nm. This method is cheap, time-saving and easy to control. This result will open a new avenue in the superamphiphobic coating research with utilizing carbon nanospheres in the near future.