采用溶胶-凝胶法合成了TiO2负载锶铁氧体光催化剂,通过XRD、TEM,uV-UVis、VSM等方法对催化剂结构进行了表征,并以高压汞灯为光源,亚甲基兰为目标降解物,对其光催化活性进行了研究.结果表明,TiO2负载锶铁氧体为复合型光催化剂,负载后的复合光催化剂保持了良好的磁性能;锶铁氧体的负载拓宽了催化剂的光响应区域,光吸收带进入可见光区;在负载量为20%,催化剂用量1.5g/L条件下,催化降解亚甲基兰的效率可达99.1%.
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