Project(50274045) supported by the National Natural Science Foundation of China; Project supported by Hubei Key Laboratory of Novel Reactor and Green Chemical Technology(NRGCT)
A γ-Fe2O3-SiO2 composite was prepared by sol-gel method followed by calcination at 700 ℃ for 30 min starting from tetraethoxysilane and iron nitrate.Upon further coating with SiO2 and TiO2,a TiO2/SiO2/(γ-Fe2O3)-S...