In conclusion,SiO2/TiO2 (Si/Ti¼1:1) compositeaerogels have been prepared via am bient pressure drying by using tetraethoxysilane(TEOS) and tetrabutyltitanate(TBT) as precursors. N2 adsorption–desorption techniques,SEM,TEM,XRD,FTIR,and UV–vis adsorption spectra have been used to systematically study the change of structural and surface properties during the calcination process.