Rose petal mimic surface by TiO2 sol-gel process

Abstract

Sol-gel-derived superhydrophobic titanium dioxide(TiO2) thin film on glass was fabricated by using the flame soot layer as a template. After the calcination and the modification of 1,1,1,3,3,3-hexamethyl disilazane, the surface shows a perfect sticky superhydrophobic state with high adhesive force and a water contact angle of 160°as so called “Petal Effect”. The micro/nano-structures of the surface was evaluated byscanning electron microscopy.