LaFeO_3/TiO_2复合光催化剂的制备及性能  

Preparation and Performance of Composite Photocatalyst LaFeO_3/TiO_2

作　　者：杨姝[1] 薛丽梅[2] 陈彬[2] 宋亚南[2] 李成林 孔小红[2] 高学鹏 

机构地区：[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040 [2]黑龙江科技学院,黑龙江哈尔滨150027 [3]哈尔滨飞机工业集团有限责任公司,黑龙江哈尔滨150001

出　　处：《广州化工》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)

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%.

关 键 词：LAFEO3 TIO2 复合光催化剂 制备 性能 

分 类 号：O643.36[理学—物理化学]