摘要
采用溶胶—凝胶法制备了LaFeO3/TiO2复合光催化剂,并用X射线衍射(XRD)和紫外-可见光谱仪(UV-Vis)对所制备的光催化剂进行了表征,根据催化剂对甲基橙的降解率对其活性进行评价。结果表明:复合了铁酸镧的LaFeO3/TiO2光催化活性要高于未复合的TiO2光催化剂,当复合浓度为0.2%较佳,甲基橙降解率可达56.34%。
LaFeO3/TiO2 composite photocatalysts were prepared by sol - gel method, and characterized by X ray diffraction （XRD） and ultraviolet - visible spectroscopy （ UV - Vis）. The catalytic activities of LaFeO3/TiO2 composite photocatalysts were evaluated for the degradation rate of methyl oranges. The results showed that the catalytic activities of LaFeO3/TiO2 composite photocatalysts were higher than that of TiO2 photocatalyst, and the highest degradation rate of methyl - orange could arrive to 56. 34%, when composite concentration was 0. 2%.
出处
《广州化工》
CAS
2013年第10期73-74,91,共3页
GuangZhou Chemical Industry
基金
黑龙江省自然基金项目(B201113)
