机构地区: 南昌大学理学院
出 处: 《功能材料》 2010年第11期1896-1899,共4页
摘 要: 以钛酸四正丁酯为先驱物,采用溶胶-凝胶法制备铁铝共掺杂的TiO2(Fe3+/Al3+-TiO2)复合光催化剂,并用XRD、UV-Vis等进行表征,系统研究煅烧温度、光催化体系中的盐对Fe3+/Al3+-TiO2复合光催化剂在自然光条件下光催化降解甲基橙性能的影响。结果表明,Fe3+/Al3+-TiO2光催化降解甲基橙的性能随着煅烧温度的升高而增强,催化体系中的HCO3-和NO2-使Fe3+/Al3+-TiO2复合光催化剂的催化活性有所降低。 Fe3+ and Al 3+ co-doped TiO2(Fe^3+/Al^3+-TiO2)composite photocatalysts were prepared by the sol-gel method using Ti(OC4H9)4 as precursor and characterized by X-ray diffraction(XRD)and UV-Vis.The effect of calcination temperature and salts in photocatalytic system on the photocatalytic activity of Fe^3+/Al^3+-TiO2 were investigated by photocatalytic degradation of methyl orange irradiated by sunlight.The photocatalytic activity of Fe^3+/Al^3+-TiO2 was enhanced with increasing temperature.HCO3-and NO2-decreased its photocatalytic activity.