采用浸渍法制备Pd-AgNbO3光催化剂,并运用XRD、XPS、SEM-EDS和DRS等方法对光催化剂进行表征与分析.以亚甲基蓝染料(MB)为降解污染物,考察Pd掺杂对AgNbO3光催化活性的影响.结果表明,Pd引入后AgNbO3的晶型结构及表面性质并未发生变化.DRS分析表明,Pd掺杂后光催化材料在可见光区的吸光度明显提高.光催化降解实验表明,当Pd的掺杂量为0.8%(质量分数,下同),热处理温度为400℃,煅烧时间为3h时,光催化降解活性最高,MB降解率为92.2%.Pd-AgNbO3光催化降解MB符合一级反应动力学特性.
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