分子筛负载二氧化钛的光催化性能研究

Photocatalytic Performance of TiO2 Supported on Molecular Sieves

采用溶胶浸渍法合成了TiO2/A型分子筛光催化剂。采用XRD、SEM分析了制备催化剂的物相和形貌,使用紫外可见分光光度计分析测试了样品的光催化效果。实验结果表明,通过负载TiO2提高了A型分子筛表面活性位点,有效提高了样品的光催化活性,紫外光照射2 h后负载TiO2的A型分子筛催化剂对RhB的降解率达到95.4%。

The TiO2/A molecular sieve photocatalyst was synthesized by sol-impregnation method.The phase and morphology of the photocatalyst were analyzed by XRD and SEM.The photocatalytic performance of the sample was tested by UV-Vis spectrophotometer.The results of photocatalysis experiments show that the surface active sites of molecular sieves are increased by loading TiO2,which effectively improves the photocatalytic activity of the samples.