Method for preparing super-hydrophobicity surfaces

The invention discloses a method for preparing super-hydrophobicity surfaces. A silane coupling agent containing reactivity amino serves as a catalyst to prepare amino modified hollow silica nanometer microspheres; the amino modified hollow silica nanometer microspheres are reacted with epoxy group modified titanium dioxide nano particles to form nano composite particles in raspberry-shaped structures; and the nano composite particles in raspberry-shaped structures are modified through long-carbon-chain fluorine-containing substances to prepare the super-hydrophobicity surfaces. The method for preparing super-hydrophobicity surfaces is characterized in that templates are not needed in the preparing process of the amino modified hollow silica nanometer microspheres; and the chemical bonding reaction between the amino modified hollow silica nanometer microspheres and the epoxy group modified titanium dioxide nano particles is used for preparing the nano composite particles in raspberry-shaped structures. The super-hydrophobicity surfaces are hopeful for being applied to heavy metal ion absorption and separation, harmful gas absorption and decomposing and micro-carrier aspects in relevant separation processes.