摘要
在高压汞灯辐照下,通过插入反应将H2Fe2Ti3O10与n-C3H7NH2/C2H5OH和TiO2溶胶制备出H2Fe2Ti3O10/TiO2插层复合物。插入TiO2的层状钙钛矿化合物H2Fe2Ti3O10在UV-vis辐照下表现出高活性。实验结果表明H2Fe2Ti3O10/TiO2作为光催化剂在可见光(λ>420nm)下辐照24h,降解甲基橙的速率为59.0%。与相同条件下降解率只有24%的商用光催化剂TiO2(Degussa P-25)相比,H2Fe2Ti3O10/TiO2表现出了更高的光催化活性。
A new nanocomposite,H2Fe2Ti3O10/TiO2 was synthesized by the stepwise intercalation reactions of H2Fe2Ti3O10with n-C3H7NH2/C2H5OH mixed solution and acid TiO2 colloid solution.H2Fe2Ti3O10,a layered perovskite type compound with TiO2-loading,exhibited a high activity for decomposition of methyl orange under UV and visible light irradiation. The experimental results showed that methyl orange was degraded with the decomposition ratio of 59.0% by using H2Fe2Ti3O10/TiO2 as photocatalyst under visible light （λ〉420nm） irradiation for 24h.The H2Fe2Ti3O10/TiO2 possessed higher photocatalytic activity than those commercial titania powder（Degussa P-25）which showed the decomposition ratio just only 24% under same condition.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2007年第5期978-984,共7页
Journal of Synthetic Crystals
基金
The subject supported by the National Natural Science Foundation of China(No.50082003
50372022)
