用柠檬酸络合法制备了钙钛矿型复合氧化物LaFeO3,并按不同比例进行掺杂,制备了La1-xPbxFeO3(x=0,0.1,0.3,0.5,0.7).用XRD,SEM,IR,UV-vis等方法对其进行表征,其结构均为钙钛矿型.并测定了其对活性艳红x-3B水溶性染料脱色的光催化活性.实验结果表明:在A位掺杂Pb2+,产生了较多氧空位,降低了光生电子与空穴的复合速率,使LaFeO3的光催化活性明显提高,其中La1-xPbxFeO3效果最佳.
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