Exploring Research of Bioinspired SiO2 Films on Surfaces of Historic Stones

Enlightened by the natural protective films on the surfaces of historic stones,the silicon dioxide protective films were prepared by hydrolysis of TEOS regulated by organic template of CTAB in the way of biomimetic synthesis.The prepared bioinspired films had the excellent resistance to acid and soil,and was water-repellent,but still maintained the good hydrophilicity.The structure of bioinspired films having been analyzed by FTIR showed that the films were mainly composed SiO2.